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A037709 Base 4 digits are, in order, the first n terms of the periodic sequence with initial period 1,3,2,0. 0
1, 7, 30, 120, 481, 1927, 7710, 30840, 123361, 493447, 1973790, 7895160, 31580641, 126322567, 505290270, 2021161080, 8084644321, 32338577287, 129354309150, 517417236600, 2069668946401, 8278675785607, 33114703142430 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..23.

Index entries for linear recurrences with constant coefficients, signature (5,-5,5,-4).

FORMULA

G.f.: ( x*(1+2*x) ) / ( (x-1)*(4*x-1)*(x^2+1) ). - R. J. Mathar, Oct 13 2015

CROSSREFS

Sequence in context: A269084 A055269 A026631 * A037611 A171472 A220720

Adjacent sequences:  A037706 A037707 A037708 * A037710 A037711 A037712

KEYWORD

nonn,base

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified November 13 23:48 EST 2019. Contains 329106 sequences. (Running on oeis4.)