A037587 Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 3,1.

3, 25, 203, 1625, 13003, 104025, 832203, 6657625, 53261003, 426088025, 3408704203, 27269633625, 218157069003, 1745256552025, 13962052416203, 111696419329625, 893571354637003, 7148570837096025

Offset

1,1

Links

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

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

Formula

G.f.: x*(3+x) / ( (x-1)*(-1+8*x)*(1+x) ). - R. J. Mathar, Apr 26 2015

Crossrefs

Sequence in context: A037664 A289164 A037783 * A280970 A222052 A230718

Adjacent sequences: A037584 A037585 A037586 * A037588 A037589 A037590

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved