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Revision History for A131865

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Showing entries 1-10 | older changes

A131865

Partial sums of powers of 16.
(history; published version)

#110 by Michel Marcus at Fri Mar 31 02:34:41 EDT 2023

STATUS

reviewed

approved

#109 by Joerg Arndt at Fri Mar 31 02:31:51 EDT 2023

STATUS

proposed

reviewed

#108 by Michel Marcus at Fri Mar 31 02:24:59 EDT 2023

STATUS

editing

proposed

#107 by Michel Marcus at Fri Mar 31 02:24:07 EDT 2023

DATA

0, 1, 17, 273, 4369, 69905, 1118481, 17895697, 286331153, 4581298449, 73300775185, 1172812402961, 18764998447377, 300239975158033, 4803839602528529, 76861433640456465, 1229782938247303441, 19676527011956855057, 314824432191309680913, 5037190915060954894609

OFFSET

0,32

STATUS

proposed

editing

Discussion

Fri Mar 31

02:24

Michel Marcus: a(n) = sum(i=0, n, 16^i)

#106 by Delbert L. Johnson at Fri Mar 31 02:13:12 EDT 2023

STATUS

editing

proposed

Discussion

Fri Mar 31

02:17

Michel Marcus: I don't think this solves the issue

02:23

Michel Marcus: actually there was no issue

#105 by Delbert L. Johnson at Fri Mar 31 01:59:35 EDT 2023

DATA

OFFSET

0,23

STATUS

approved

editing

Discussion

Fri Mar 31

02:00

Delbert L. Johnson: Offset says zero, but sequence started at n = 1. B-File data starts at zero.

Repunit numbers are very inconsistent about this. https://oeis.org/wiki/Repunit_numbers

#104 by Alois P. Heinz at Fri Feb 03 20:40:28 EST 2023

STATUS

editing

approved

#103 by Alois P. Heinz at Fri Feb 03 20:40:23 EST 2023

DATA

1, 17, 273, 4369, 69905, 1118481, 17895697, 286331153, 4581298449, 73300775185, 1172812402961, 18764998447377, 300239975158033, 4803839602528529, 76861433640456465, 1229782938247303441, 19676527011956855057, 314824432191309680913, 5037190915060954894609

STATUS

approved

editing

#102 by Alois P. Heinz at Fri Feb 03 20:38:54 EST 2023

FORMULA

a(n) = (16^(n-+1) - 1)/15. - Bernard Schott, Jun 06 2017 (Formula corrected by _Vladimir Pletser_, Feb 03 2023).

KEYWORD

nonn,easy,changed

STATUS

editing

approved

#101 by Alois P. Heinz at Fri Feb 03 20:37:37 EST 2023

STATUS

proposed

editing

Discussion

Fri Feb 03

20:38

Alois P. Heinz: all the contributions were checked before ... so there is some chance that you are wrong ...

20:38

Alois P. Heinz: reverting now ...