A037658 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,2.

3, 27, 245, 2208, 19872, 178850, 1609653, 14486877, 130381895, 1173437058, 10560933522, 95048401700, 855435615303, 7698920537727, 69290284839545, 623612563555908, 5612513072003172

Offset

1,1

Links

Table of n, a(n) for n=1..17.

Index entries for linear recurrences with constant coefficients, signature (9,0,1,-9).

Formula

G.f.: x*(3+2*x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

Crossrefs

Sequence in context: A037763 A037651 A037770 * A370271 A163474 A385281

Adjacent sequences: A037655 A037656 A037657 * A037659 A037660 A037661

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved