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A037566 Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,2,1. 0
2, 20, 181, 1631, 14681, 132130, 1189172, 10702550, 96322951, 866906561, 7802159051, 70219431460, 631974883142, 5687773948280, 51189965534521, 460709689810691, 4146387208296221 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

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

FORMULA

G.f.: x*(2+2*x+x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

CROSSREFS

Sequence in context: A105493 A067641 A279462 * A125857 A226312 A171076

Adjacent sequences:  A037563 A037564 A037565 * A037567 A037568 A037569

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified December 9 03:27 EST 2019. Contains 329872 sequences. (Running on oeis4.)