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A013741 a(n) = 7^(3*n + 2). 2
49, 16807, 5764801, 1977326743, 678223072849, 232630513987207, 79792266297612001, 27368747340080916343, 9387480337647754305649, 3219905755813179726837607, 1104427674243920646305299201, 378818692265664781682717625943 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..100

Tanya Khovanova, Recursive Sequences

Index entries for linear recurrences with constant coefficients, signature (343).

FORMULA

From Philippe Deléham, Nov 28 2008: (Start)

a(n) = 343*a(n-1); a(0)=49.

G.f.: 49/(1-343*x). (End)

MAPLE

seq(7^(3*n+2), n=0..11); # Nathaniel Johnston, Jun 26 2011

MATHEMATICA

7^(3Range[0, 20]+2) (* or *) NestList[343#&, 49, 20] (* Harvey P. Dale, Oct 03 2012 *)

PROG

(MAGMA) [7^(3*n+2): n in [0..15]]; // Vincenzo Librandi, May 25 2011

(PARI) a(n)=7^(3*n+2) \\ Charles R Greathouse IV, Jul 11 2016

CROSSREFS

Cf. A013740.

Sequence in context: A145251 A202991 A203061 * A178190 A319941 A210819

Adjacent sequences:  A013738 A013739 A013740 * A013742 A013743 A013744

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified November 19 19:19 EST 2018. Contains 317364 sequences. (Running on oeis4.)