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A013787 7^(4n+3). 2
343, 823543, 1977326743, 4747561509943, 11398895185373143, 27368747340080916343, 65712362363534280139543, 157775382034845806615042743, 378818692265664781682717625943, 909543680129861140820205019889143, 2183814375991796599109312252753832343 (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 (2401).

FORMULA

a(n)=2401*a(n-1), n>0 ; a(0)=343 . G.f.: 343/(1-2401*x). a(n)=49*A013786(n). - Philippe Deléham, Dec 02 2008

PROG

(MAGMA) [7^(4*n+3): n in [0..15]]; // Vincenzo Librandi, Jun 28 2011

(Maxima) makelist(7^(4*n+3), n, 0, 20); - Martin Ettl, Oct 21 2012

(PARI) a(n)=7^(4*n+3) \\ Charles R Greathouse IV, Jul 11 2016

CROSSREFS

Sequence in context: A269554 A046236 A222460 * A013844 A044878 A085336

Adjacent sequences:  A013784 A013785 A013786 * A013788 A013789 A013790

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified August 20 21:40 EDT 2017. Contains 290837 sequences.