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A081196 a(n) = (n+4)^n*C(n+2,2). 1
1, 15, 216, 3430, 61440, 1240029, 28000000, 701538156, 19349176320, 583247465515, 19090807228416, 674680957031250, 25614222880669696, 1039980693455123385, 44977604109849722880, 2064633276062972568664 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Diagonal of A081130.

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..200

FORMULA

a(n) = (n+4)^n*C(n+2,2).

MATHEMATICA

Table[(n + 4)^n  Binomial[n + 2, 2], {n, 0, 30}] (* Vincenzo Librandi, Aug 07 2013 *)

PROG

(MAGMA) [(n+4)^n*Binomial(n+2, 2): n in [0..20]]; // Vincenzo Librandi, Aug 07 2013

CROSSREFS

Sequence in context: A179091 A201340 A051826 * A020287 A152272 A091644

Adjacent sequences:  A081193 A081194 A081195 * A081197 A081198 A081199

KEYWORD

nonn,easy

AUTHOR

Paul Barry, Mar 11 2003

STATUS

approved

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Last modified August 6 18:52 EDT 2020. Contains 336256 sequences. (Running on oeis4.)