The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A034488 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A034488

Sum of n-th powers of divisors of 6.
(history; published version)

#31 by Charles R Greathouse IV at Thu Sep 08 08:44:51 EDT 2022

PROG

(MAGMAMagma) [DivisorSigma(n, 6): n in [0..20]]; // Vincenzo Librandi, Apr 17 2014

Discussion

Thu Sep 08

08:44

OEIS Server: https://oeis.org/edit/global/2944

#30 by N. J. A. Sloane at Sat Dec 07 12:18:21 EST 2019

PROG

(Sage) [sigma(6, n)for n in xrangerange(0, 20)] # Zerinvary Lajos, Jun 04 2009

Discussion

Sat Dec 07

12:18

OEIS Server: https://oeis.org/edit/global/2837

#29 by Charles R Greathouse IV at Sat Jun 13 00:49:13 EDT 2015

LINKS

<a href="/index/Rec">Index to sequences with entries for linear recurrences with constant coefficients</a>, signature (12,-47,72,-36).

Discussion

Sat Jun 13

00:49

OEIS Server: https://oeis.org/edit/global/2439

#28 by Charles R Greathouse IV at Fri Jun 12 15:23:51 EDT 2015

LINKS

<a href="/index/Rea#recLCCRec">Index to sequences with linear recurrences with constant coefficients</a>, signature (12,-47,72,-36).

Discussion

Fri Jun 12

15:23

OEIS Server: https://oeis.org/edit/global/2436

#27 by Bruno Berselli at Sun Apr 20 13:29:17 EDT 2014

STATUS

editing

approved

#26 by Bruno Berselli at Sun Apr 20 13:29:13 EDT 2014

DATA

4, 12, 50, 252, 1394, 8052, 47450, 282252, 1686434, 10097892, 60526250, 362976252, 2177317874, 13062296532, 78368963450, 470199366252, 2821153019714, 16926788715972, 101560344351050, 609360902796252, 3656161927895954, 21936961102828212, 131621735227521050

FORMULA

G.f.: -2*(36*x^3 - 47*x^2 + 18*x - 2) / ((x - 1)*(2*x - 1)*(3*x - 1)*(6*x - 1)). - Colin Barker, Apr 20 2014

STATUS

proposed

editing

#25 by Jon E. Schoenfield at Sun Apr 20 12:24:14 EDT 2014

STATUS

editing

proposed

#24 by Jon E. Schoenfield at Sun Apr 20 12:24:12 EDT 2014

FORMULA

a(n) = 1^n + 2^n + 3^n + 6^n.

AUTHOR

N. J. A. Sloane.

STATUS

proposed

editing

#23 by Colin Barker at Sun Apr 20 09:15:56 EDT 2014

STATUS

editing

proposed

#22 by Colin Barker at Sun Apr 20 09:15:42 EDT 2014

DATA

LINKS

<a href="/index/Rea#recLCC">Index to sequences with linear recurrences with constant coefficients</a>, signature (12,-47,72,-36).

FORMULA

G.f.: -2*(36*x^3-47*x^2+18*x-2) / ((x-1)*(2*x-1)*(3*x-1)*(6*x-1)). - Colin Barker, Apr 20 2014

EXTENSIONS

More terms from Colin Barker, Apr 20 2014

STATUS

approved

editing