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| A262611
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Triangle read by rows in which row n lists the widths of the symmetric representation of A024916(n): the sum of all divisors of all positive integers <= n.
(history;
published version)
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#36 by Joerg Arndt at Sun Dec 30 04:37:57 EST 2018
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#35 by Michel Marcus at Sun Dec 30 04:36:21 EST 2018
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#34 by Michel Marcus at Sun Dec 30 04:36:14 EST 2018
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| COMMENTS
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Here T(n,k) is defined to be the "k-th width" of the symmetric representation of A024916(n), whithwith n>=1 and 1<=k<=2n-1.
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| STATUS
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approved
editing
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Discussion
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| Sun Dec 30
| 04:36
| Michel Marcus: typo
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#33 by Michael Somos at Sat Oct 24 12:43:03 EDT 2015
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#32 by G. C. Greubel at Sun Oct 04 01:57:04 EDT 2015
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#31 by Omar E. Pol at Sat Oct 03 17:14:36 EDT 2015
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#30 by Omar E. Pol at Sat Oct 03 17:14:30 EDT 2015
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| CROSSREFS
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Cf. A024916, A236104, A237048, A237593, A240542, A241008, A241010, A244250, A245685, A246955, A247687, A249351, A250068, A250070, A250071, A253258, A262626.
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proposed
editing
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#29 by Omar E. Pol at Sat Oct 03 17:14:08 EDT 2015
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#28 by Omar E. Pol at Sat Oct 03 17:14:04 EDT 2015
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| COMMENTS
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Note that for the geometric representation of the n-th row of the triangle we need the x-axis, the y-axis, and only a Dyck path which is given by the elements of the n-th row of the triangle A237593.
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proposed
editing
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#27 by Omar E. Pol at Sat Oct 03 17:11:52 EDT 2015
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