A037711 Base 6 digits are, in order, the first n terms of the periodic sequence with initial period 1,3,2,0.

1, 9, 56, 336, 2017, 12105, 72632, 435792, 2614753, 15688521, 94131128, 564786768, 3388720609, 20332323657, 121993941944, 731963651664, 4391781909985, 26350691459913, 158104148759480, 948624892556880, 5691749355341281

Offset

1,2

Links

Table of n, a(n) for n=1..21.

Index entries for linear recurrences with constant coefficients, signature (7,-7,7,-6).

Formula

G.f.: ( x*(1+2*x) ) / ( (x-1)*(6*x-1)*(x^2+1) ). - R. J. Mathar, Oct 13 2015

Mathematica

Table[FromDigits[PadRight[{}, n, {1, 3, 2, 0}], 6], {n, 30}] (* or *) LinearRecurrence[{7, -7, 7, -6}, {1, 9, 56, 336}, 30] (* Harvey P. Dale, Jun 16 2023 *)

Crossrefs

Sequence in context: A163889 A296817 A034362 * A037613 A274553 A221801

Adjacent sequences: A037708 A037709 A037710 * A037712 A037713 A037714

Keyword

nonn,base

Author

Clark Kimberling

Status

approved