A037595 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 1,0,3.

1, 9, 84, 757, 6813, 61320, 551881, 4966929, 44702364, 402321277, 3620891493, 32588023440, 293292210961, 2639629898649, 23756669087844, 213810021790597, 1924290196115373

Offset

1,2

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*(1+3*x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 27 2015

Example

In base 9 the sequence reads 1, 10, 103, 1031, 10310,...

Crossrefs

Sequence in context: A180807 A203455 A272582 * A037686 A181353 A370029

Adjacent sequences: A037592 A037593 A037594 * A037596 A037597 A037598

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved