A013751 a(n) = 12^(3*n + 2).

144, 248832, 429981696, 743008370688, 1283918464548864, 2218611106740436992, 3833759992447475122176, 6624737266949237011120128, 11447545997288281555215581184

Offset

0,1

Links

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

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (1728).

Formula

From Philippe Deléham, Nov 30 2008: (Start)

a(n) = 1728*a(n-1); a(0)=144.

G.f.: 144/(1-1728*x).

a(n) = 12*A013750(n). (End)

Prog

(Magma) [12^(3*n+2): n in [0..15]]; // Vincenzo Librandi, Jun 27 2011
(PARI) a(n)=12^(3*n+2) \\ Charles R Greathouse IV, Jun 27 2011

Crossrefs

Subsequence of A001021.

Sequence in context: A047807 A023112 A159424 * A033514 A086778 A227652

Adjacent sequences: A013748 A013749 A013750 * A013752 A013753 A013754

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved