The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A363629

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Showing entries 1-10 | older changes

A363629

Expansion of Sum_{k>0} (1/(1+x^k)^2 - 1).
(history; published version)

#25 by Joerg Arndt at Wed Jul 19 02:19:56 EDT 2023

STATUS

reviewed

approved

#24 by Michel Marcus at Wed Jul 19 00:12:47 EDT 2023

STATUS

proposed

reviewed

#23 by Amiram Eldar at Tue Jul 18 23:54:34 EDT 2023

STATUS

editing

proposed

#22 by Amiram Eldar at Tue Jul 18 23:51:26 EDT 2023

MATHEMATICA

a[n_] := DivisorSum[n, (-1)^#*(# + 1) &]; Array[a, 100] (* Amiram Eldar, Jul 18 2023 *)

STATUS

approved

editing

#21 by OEIS Server at Thu Jun 15 07:43:22 EDT 2023

LINKS

Seiichi Manyama, <a href="/A363629/b363629_1.txt">Table of n, a(n) for n = 1..10000</a>

#20 by Joerg Arndt at Thu Jun 15 07:43:22 EDT 2023

STATUS

proposed

approved

Discussion

Thu Jun 15

07:43

OEIS Server: Installed first b-file as b363629.txt.

#19 by Seiichi Manyama at Thu Jun 15 07:34:37 EDT 2023

STATUS

editing

proposed

#18 by Seiichi Manyama at Thu Jun 15 06:59:14 EDT 2023

LINKS

Seiichi Manyama, <a href="/A363629/b363629_1.txt">Table of n, a(n) for n = 1..10000</a>

STATUS

approved

editing

#17 by Alois P. Heinz at Mon Jun 12 09:18:51 EDT 2023

STATUS

proposed

approved

#16 by Seiichi Manyama at Mon Jun 12 09:14:56 EDT 2023

STATUS

editing

proposed