A016769 a(n) = (3*n)^5.

0, 243, 7776, 59049, 248832, 759375, 1889568, 4084101, 7962624, 14348907, 24300000, 39135393, 60466176, 90224199, 130691232, 184528125, 254803968, 345025251, 459165024, 601692057, 777600000

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (6,-15,20,-15,6,-1).

Formula

G.f.: 243*x*(1 + 26*x + 66*x^2 + 26*x^3 + x^4)/(1-x)^6. [Colin Barker, Sep 17 2012]

Prog

(Magma) [(3*n)^5: n in [0..40]]; // Vincenzo Librandi, Sep 07 2011
(Maxima) A016769(n):=(3*n)^5$
makelist(A016769(n), n, 0, 20); /* Martin Ettl, Nov 12 2012 */

Crossrefs

Sequence in context: A231913 A223280 A224356 * A224015 A059860 A268975

Adjacent sequences: A016766 A016767 A016768 * A016770 A016771 A016772

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved