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A037664 Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0. 0
3, 25, 200, 1603, 12825, 102600, 820803, 6566425, 52531400, 420251203, 3362009625, 26896077000, 215168616003, 1721348928025, 13770791424200, 110166331393603, 881330651148825, 7050645209190600 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..18.

Index entries for linear recurrences with constant coefficients, signature (8,0,1,-8).

FORMULA

G.f.: x*(3+x) / ( (x-1)*(-1+8*x)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

CROSSREFS

Sequence in context: A221777 A227995 A037776 * A289164 A037783 A037587

Adjacent sequences:  A037661 A037662 A037663 * A037665 A037666 A037667

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified June 14 14:21 EDT 2021. Contains 345025 sequences. (Running on oeis4.)