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A050916 n*5^n+1. 1
1, 6, 51, 376, 2501, 15626, 93751, 546876, 3125001, 17578126, 97656251, 537109376, 2929687501, 15869140626, 85449218751, 457763671876, 2441406250001, 12969970703126, 68664550781251, 362396240234376, 1907348632812501 (list; graph; refs; listen; history; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

FORMULA

a(0)=1, a(1)=6, a(2)=51, a(n)=11*a(n-1)-35*a(n-2)+25*a(n-3) [From Harvey P. Dale, Sep 15 2011]

MATHEMATICA

Table[n 5^n+1, {n, 0, 20}] (* or *) LinearRecurrence[{11, -35, 25}, {1, 6, 51}, 20] (* From Harvey P. Dale, Sep 15 2011 *)

PROG

(MAGMA) [ n*5^n+1: n in [0..20]]; // Vincenzo Librandi, Sep 16 2011

CROSSREFS

Cf. A002064.

Sequence in context: A113653 A173082 A133395 * A011790 A202754 A180901

Adjacent sequences:  A050913 A050914 A050915 * A050917 A050918 A050919

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Dec 30 1999

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Last modified February 16 12:12 EST 2012. Contains 205908 sequences.