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A013728
a(n) = 23^(2*n + 1).
4
23, 12167, 6436343, 3404825447, 1801152661463, 952809757913927, 504036361936467383, 266635235464391245607, 141050039560662968926103, 74615470927590710561908487, 39471584120695485887249589623
OFFSET
0,1
FORMULA
From Philippe Deléham, Nov 28 2008: (Start)
a(n) = 529*a(n-1); a(0)=23.
G.f.: 23/(1-529*x). (End)
MAPLE
seq(23^(2*n+1), n=0..10); # Nathaniel Johnston, Jun 26 2011
MATHEMATICA
NestList[529#&, 23, 15] (* Harvey P. Dale, Jan 17 2012 *)
PROG
(Magma) [23^(2*n+1): n in [0..15]]; // Vincenzo Librandi, Jun 26 2011
(PARI) a(n)=23^(2*n+1) \\ Charles R Greathouse IV, Jul 11 2016
CROSSREFS
KEYWORD
nonn,easy
STATUS
approved