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A013769 21^(3n+2). 1
441, 4084101, 37822859361, 350277500542221, 3243919932521508681, 30041942495081691894741, 278218429446951548637196401, 2576580875108218291929075869661, 23861715484377209601555171628930521, 220983347100817338120002444455525554981 (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 (9261).

PROG

(MAGMA) [21^(3*n+2): n in [0..10]]; // Vincenzo Librandi, Jun 27 2011

(Maxima) makelist(21^(3*n+2), n, 0, 20); - Martin Ettl, Oct 21 2012

(PARI) a(n)=21^(3*n+2) \\ Charles R Greathouse IV, Jul 10 2016

CROSSREFS

Sequence in context: A264223 A233343 A110996 * A013899 A075268 A158322

Adjacent sequences:  A013766 A013767 A013768 * A013770 A013771 A013772

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified May 28 04:27 EDT 2017. Contains 287212 sequences.