A037767 Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 3,0,2,1.

3, 18, 110, 661, 3969, 23814, 142886, 857317, 5143905, 30863430, 185180582, 1111083493, 6666500961, 39999005766, 239994034598, 1439964207589, 8639785245537, 51838711473222, 311032268839334, 1866193613036005

Offset

1,1

Links

Table of n, a(n) for n=1..20.

Index entries for linear recurrences with constant coefficients, signature (6,0,0,1,-6).

Formula

G.f.: x*(3+2*x^2+x^3) / ( (x-1)*(6*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, May 02 2015

Mathematica

Table[FromDigits[PadRight[{}, n, {3, 0, 2, 1}], 6], {n, 20}] (* Harvey P. Dale, Aug 15 2016 *)

Crossrefs

Sequence in context: A037760 A037648 A036724 * A037655 A074571 A114311

Adjacent sequences: A037764 A037765 A037766 * A037768 A037769 A037770

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved