The On-Line Encyclopedia of Integer Sequences (OEIS)

Revision History for A170756 (Bold, blue-underlined text is an addition; faded, red-underlined text is a ~~deletion~~.)
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A170756

Expansion of g.f.: (1+x)/(1-36*x).
(history; published version)

#17 by Charles R Greathouse IV at Thu Sep 08 08:45:49 EDT 2022

PROG

(MAGMAMagma) k:=37; [1] cat [k*(k-1)^(n-1): n in [1..25]]; // G. C. Greubel, Oct 09 2019

Discussion

Thu Sep 08

08:45

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

#16 by Charles R Greathouse IV at Thu Jul 22 10:32:54 EDT 2021

STATUS

editing

approved

#15 by Charles R Greathouse IV at Thu Jul 22 10:32:51 EDT 2021

KEYWORD

nonn,easy

STATUS

approved

editing

#14 by Alois P. Heinz at Wed Oct 09 15:29:24 EDT 2019

STATUS

proposed

approved

#13 by Stefano Spezia at Wed Oct 09 15:23:40 EDT 2019

STATUS

editing

proposed

#12 by Stefano Spezia at Wed Oct 09 15:23:36 EDT 2019

FORMULA

E.g.f.: 1 + (1/36)*(37*exp(36*x) - 1). - Stefano Spezia, Oct 09 2019

STATUS

proposed

editing

#11 by Stefano Spezia at Wed Oct 09 15:19:40 EDT 2019

STATUS

editing

proposed

#10 by Stefano Spezia at Wed Oct 09 15:19:36 EDT 2019

FORMULA

E.g.f.: 1 + (1/36)*(37*exp(36*x) - 1). - Stefano Spezia, Oct 09 2019

STATUS

proposed

editing

#9 by G. C. Greubel at Wed Oct 09 15:09:54 EDT 2019

STATUS

editing

proposed

#8 by G. C. Greubel at Wed Oct 09 15:09:51 EDT 2019

NAME

GExpansion of g.f.: (1+x)/(1-36*x).

LINKS

G. C. Greubel, <a href="/A170756/b170756.txt">Table of n, a(n) for n = 0..639</a>

FORMULA

a(n) = Sum_{k, =0<=k<=..n} A097805(n,k)*(-1)^(n-k)*37^k. [From _- _Philippe Deléham_, Dec 04 2009]

MAPLE

k:=37; seq(`if`(n=0, 1, k*(k-1)^(n-1)), n = 0..25); # G. C. Greubel, Oct 09 2019

MATHEMATICA

With[{k = 37}, Table[If[n==0, 1, k*(k-1)^(n-1)], {n, 0, 25}]] (* G. C. Greubel, Oct 09 2019 *)

PROG

(PARI) vector(26, n, k=37; if(n==1, 1, k*(k-1)^(n-2))) \\ G. C. Greubel, Oct 09 2019

(MAGMA) k:=37; [1] cat [k*(k-1)^(n-1): n in [1..25]]; // G. C. Greubel, Oct 09 2019

(Sage) k=37; [1]+[k*(k-1)^(n-1) for n in (1..25)] # G. C. Greubel, Oct 09 2019

(GAP) k:=37;; Concatenation([1], List([1..25], n-> k*(k-1)^(n-1) )); # G. C. Greubel, Oct 09 2019

CROSSREFS

Cf. A003945.

STATUS

approved

editing