A037562 - OEIS

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A037562

Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 2,2,1.

0

2, 12, 61, 307, 1537, 7686, 38432, 192162, 960811, 4804057, 24020287, 120101436, 600507182, 3002535912, 15012679561, 75063397807, 375316989037, 1876584945186, 9382924725932, 46914623629662, 234573118148311, 1172865590741557

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..22.

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

FORMULA

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

CROSSREFS

Sequence in context: A358448 A127044 A245091 * A321277 A377464 A187001

Adjacent sequences: A037559 A037560 A037561 * A037563 A037564 A037565

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved