A037742 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,3,0.

2, 19, 174, 1566, 14096, 126865, 1141788, 10276092, 92484830, 832363471, 7491271242, 67421441178, 606792970604, 5461136735437, 49150230618936, 442352075570424, 3981168680133818

Offset

1,1

Links

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

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

Formula

G.f.: ( x*(2+x+3*x^2) ) / ( (x-1)*(9*x-1)*(1+x)*(x^2+1) ). - R. J. Mathar, Oct 14 2015

Crossrefs

Sequence in context: A037558 A037494 A037574 * A037637 A163067 A221904

Adjacent sequences: A037739 A037740 A037741 * A037743 A037744 A037745

Keyword

nonn,base

Author

Clark Kimberling

Status

approved