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A154306
a(n) = (n+1)^3*(3+n)!/6.
3
1, 32, 540, 7680, 105000, 1451520, 20744640, 309657600, 4849891200, 79833600000, 1381360780800, 25107347865600, 478826764416000, 9568689242112000, 200074178304000000, 4370687116443648000, 99607063051431936000
OFFSET
0,2
COMMENTS
Row 3 of square array A152818.
LINKS
FORMULA
E.g.f.: (1 + 25*x + 67*x^2 + 27*x^3)/(1-x)^7. - R. J. Mathar, Dec 21 2011
MATHEMATICA
Table[(n+1)^3*(3+n)!/6, {n, 0, 20}] (* Vincenzo Librandi, Mar 27 2012 *)
PROG
(Magma) [(n+1)^3*Factorial(3+n)/6: n in [0..20]]; // Vincenzo Librandi, Mar 27 2012
(PARI) a(n) = (n+1)^3*(n+3)!/6 \\ Charles R Greathouse IV, Sep 10 2016
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Omar E. Pol, Jan 06 2009
EXTENSIONS
More terms from Sean A. Irvine, Dec 01 2009
STATUS
approved