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A013750 12^(3n+1). 2
12, 20736, 35831808, 61917364224, 106993205379072, 184884258895036416, 319479999370622926848, 552061438912436417593344, 953962166440690129601298432, 1648446623609512543951043690496 (list; graph; refs; listen; history; text; internal format)
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

a(n)=1728*a(n-1), n>0 ; a(0)=12 . G.f.: 12/(1-1728*x). a(n)=A013751(n)/12 . [From Philippe Deléham, Nov 30 2008]

PROG

(MAGMA) [12^(3*n+1): n in [0..15]]; // Vincenzo Librandi, Jun 27 2011

(PARI) a(n)=12^(3*n+1) \\ Charles R Greathouse IV, Jun 27 2011

CROSSREFS

Sequence in context: A216874 A012736 A176771 * A127395 A076807 A220791

Adjacent sequences:  A013747 A013748 A013749 * A013751 A013752 A013753

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified March 28 02:14 EDT 2017. Contains 284182 sequences.