A037563 - OEIS

A037563

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

2, 14, 85, 512, 3074, 18445, 110672, 664034, 3984205, 23905232, 143431394, 860588365, 5163530192, 30981181154, 185887086925, 1115322521552, 6691935129314, 40151610775885, 240909664655312, 1445457987931874

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OFFSET

1,1

LINKS

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

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

FORMULA

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

MATHEMATICA

Table[FromDigits[PadRight[{}, n, {2, 2, 1}], 6], {n, 20}] (* or *) LinearRecurrence[{6, 0, 1, -6}, {2, 14, 85, 512}, 20] (* Harvey P. Dale, Mar 14 2023 *)

CROSSREFS

Sequence in context: A361552 A036692 A075140 * A005610 A065355 A162478

Adjacent sequences: A037560 A037561 A037562 * A037564 A037565 A037566

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved