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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 STATUS approved

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