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

0,1

LINKS

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

Tanya Khovanova, Recursive Sequences

FORMULA

a(n)=343*a(n-1), n>0 ; a(0)=49 . G.f.: 49/(1-343*x). [From Philippe DELEHAM (kolotoko(AT)wanadoo.fr), Nov 28 2008]

MAPLE

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

PROG

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

CROSSREFS

Cf. A013740.

Sequence in context: A145251 A202991 A203061 * A178190 A173171 A100418

Adjacent sequences:  A013738 A013739 A013740 * A013742 A013743 A013744

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 21:10 EST 2012. Contains 205856 sequences.