Revision History for A049833
(Underlined text is an addition;
strikethrough text is a deletion.)
Showing all changes.
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#10 by Michel Marcus at Sun Aug 08 03:45:17 EDT 2021
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#9 by Joerg Arndt at Sun Aug 08 01:38:11 EDT 2021
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#8 by Michel Marcus at Sun Aug 08 00:17:48 EDT 2021
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#7 by Michel Marcus at Sun Aug 08 00:17:46 EDT 2021
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| CROSSREFS
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Cf. A049828.
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| STATUS
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proposed
editing
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#6 by Sean A. Irvine at Sat Aug 07 19:15:47 EDT 2021
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#5 by Sean A. Irvine at Sat Aug 07 19:15:43 EDT 2021
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| NAME
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a(n)=) = T(2n-1,n)+) + T(2n,n+1)+...+) + ... + T(3n-3,2n-2)=) = sum over a period of n-th diagonal of array T given by A049828.
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| DATA
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0, 1, 5, 13, 23, 40, 54, 80, 104, 131, 161, 209, 231, 288, 332, 376, 426, 499, 549, 631, 673, 748, 826, 940, 972, 1073, 1177, 1261, 1347, 1490, 1526, 1688, 1774, 1899, 2031, 2133, 2219, 2398, 2538, 2680, 2766, 2981, 3039, 3281, 3379, 3516, 3724, 3950, 4002
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| EXTENSIONS
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More terms from Sean A. Irvine, Aug 07 2021
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| STATUS
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approved
editing
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#4 by Russ Cox at Fri Mar 30 18:56:59 EDT 2012
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Discussion
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| Fri Mar 30
| 18:56
| OEIS Server: https://oeis.org/edit/global/285
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#3 by N. J. A. Sloane at Sat Sep 13 03:00:00 EDT 2003
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| KEYWORD
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nonn,new
nonn
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| AUTHOR
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Clark Kimberling, (ck6(AT)evansville.edu)
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#2 by N. J. A. Sloane at Fri May 16 03:00:00 EDT 2003
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| NAME
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a(n)=T(2n-1,n)+T(2n,n+1)+...+T(3n-3,2n-2)=sum over a period of nthn-th diagonal of array T given by A049828.
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| KEYWORD
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nonn,new
nonn
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| AUTHOR
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Clark Kimberling, ck6@cedar.(AT)evansville.edu
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#1 by N. J. A. Sloane at Sat Dec 11 03:00:00 EST 1999
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| NAME
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a(n)=T(2n-1,n)+T(2n,n+1)+...+T(3n-3,2n-2)=sum over a period of nth diagonal of array T given by A049828.
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| DATA
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0, 1, 5, 13, 23, 40, 54, 80, 104, 131, 161, 209, 231, 288, 332, 376, 426, 499, 549, 631, 673, 748, 826, 940
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| OFFSET
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1,3
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| KEYWORD
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nonn
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| AUTHOR
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Clark Kimberling, ck6@cedar.evansville.edu
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| STATUS
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approved
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