The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A277637 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A277637

Partial sums of A007004.
(history; published version)

#15 by Vaclav Kotesovec at Sun Oct 30 05:42:25 EDT 2016

STATUS

editing

approved

#14 by Vaclav Kotesovec at Sun Oct 30 05:42:19 EDT 2016

FORMULA

a(n) ~ 3^(3*n+7/2) / (52*Pi*n^2). - Vaclav Kotesovec, Oct 30 2016

STATUS

approved

editing

#13 by Bruno Berselli at Wed Oct 26 03:45:05 EDT 2016

STATUS

proposed

approved

#12 by Wesley Ivan Hurt at Tue Oct 25 13:06:26 EDT 2016

STATUS

editing

proposed

#11 by Wesley Ivan Hurt at Tue Oct 25 13:05:21 EDT 2016

FORMULA

a(n) = sum_Sum_{k=0..n} multinomial(k,k,k)/(k+1).

a(n) = hypergeometric(1/3,2/3;2;27)-(multinomial(n+1,n+1,n+1)/(n+2)) * hypergeometric[1,n+4/3,n+5/3;n+2,n+3;27).

G.f. : hypergeometric(1/3,2/3;2;27*t)/(1-t).

STATUS

proposed

editing

#10 by Emanuele Munarini at Tue Oct 25 12:34:31 EDT 2016

STATUS

editing

proposed

#9 by Emanuele Munarini at Tue Oct 25 12:34:16 EDT 2016

DATA

1, 4, 34, 454, 7384, 133510, 2583958, 52468078, 1104191608, 23891534758, 528527606698, 11905777228618, 272269758961018, 6306419621308618, 147677930682023818, 3491114167267938298, 83217317955857060788, 1998209467779811473538, 48293984598611551487038, 1174012306200941229710038, 28689784424223599507417938

STATUS

proposed

editing

#8 by Omar E. Pol at Tue Oct 25 10:26:54 EDT 2016

STATUS

editing

proposed

#7 by Omar E. Pol at Tue Oct 25 10:25:20 EDT 2016

CROSSREFS

Cf. A007004.

Discussion

Tue Oct 25

10:26

Omar E. Pol: Coul you please give more terms (three new terms are sufficient)..

#6 by Omar E. Pol at Tue Oct 25 10:24:38 EDT 2016

NAME

Partial sums of sequence A007004.

STATUS

proposed

editing