A037795 Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 3,2,1,0.

3, 20, 121, 726, 4359, 26156, 156937, 941622, 5649735, 33898412, 203390473, 1220342838, 7322057031, 43932342188, 263594053129, 1581564318774, 9489385912647, 56936315475884, 341617892855305, 2049707357131830

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+x^2) / ( (x-1)*(6*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, Apr 30 2015

Crossrefs

Sequence in context: A037669 A228066 A009125 * A325890 A323563 A228750

Adjacent sequences: A037792 A037793 A037794 * A037796 A037797 A037798

Keyword

nonn,base,easy

Author

Clark Kimberling

Status

approved