The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A322081 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A322081

Square array A(n,k), n >= 1, k >= 0, read by antidiagonals: A(n,k) = Sum_{d|n} (-1)^(n/d+1)*d^k.
(history; published version)

#13 by OEIS Server at Sun Jan 07 15:52:19 EST 2024

LINKS

Andrew Howroyd, <a href="/A322081/b322081_1.txt">Table of n, a(n) for n = 1..1275</a> (first 50 antidiagonals)

#12 by Michael De Vlieger at Sun Jan 07 15:52:19 EST 2024

STATUS

proposed

approved

Discussion

Sun Jan 07

15:52

OEIS Server: Installed first b-file as b322081.txt.

#11 by Andrew Howroyd at Sun Jan 07 15:19:35 EST 2024

STATUS

editing

proposed

#10 by Andrew Howroyd at Sun Jan 07 15:03:05 EST 2024

LINKS

Andrew Howroyd, <a href="/A322081/b322081_1.txt">Table of n, a(n) for n = 1..1275</a> (first 50 antidiagonals)

STATUS

approved

editing

#9 by Bruno Berselli at Tue Nov 27 03:07:49 EST 2018

STATUS

reviewed

approved

#8 by Michel Marcus at Tue Nov 27 01:31:16 EST 2018

STATUS

proposed

reviewed

#7 by Andrew Howroyd at Mon Nov 26 23:10:25 EST 2018

STATUS

editing

proposed

#6 by Andrew Howroyd at Mon Nov 26 23:10:12 EST 2018

PROG

(PARI) T(n, k)={sumdiv(n, d, (-1)^(n/d+1)*d^k)}

for(n=1, 10, for(k=0, 8, print1(T(n, k), ", ")); print); \\ Andrew Howroyd, Nov 26 2018

STATUS

proposed

editing

#5 by Ilya Gutkovskiy at Mon Nov 26 10:37:44 EST 2018

STATUS

editing

proposed

#4 by Ilya Gutkovskiy at Mon Nov 26 10:18:43 EST 2018

CROSSREFS

Columns k=0..12 give A048272, A000593, A078306, A078307, A284900, A284926, A284927, A321552, A321553, A321554, A321555, A321556, A321557.