A037664 Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0.

3, 25, 200, 1603, 12825, 102600, 820803, 6566425, 52531400, 420251203, 3362009625, 26896077000, 215168616003, 1721348928025, 13770791424200, 110166331393603, 881330651148825, 7050645209190600

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