A037647 - OEIS

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A037647

Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,1.

0

3, 15, 76, 383, 1915, 9576, 47883, 239415, 1197076, 5985383, 29926915, 149634576, 748172883, 3740864415, 18704322076, 93521610383, 467608051915, 2338040259576, 11690201297883, 58451006489415, 292255032447076

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..21.

Index entries for linear recurrences with constant coefficients, signature (5,0,1,-5).

FORMULA

G.f.: x*(3+x^2) / ( (x-1)*(5*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

CROSSREFS

Sequence in context: A047015 A322186 A037759 * A019477 A019478 A151327

Adjacent sequences: A037644 A037645 A037646 * A037648 A037649 A037650

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved