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A037564 Base 7 digits are, in order, the first n terms of the periodic sequence with initial period 2,2,1. 0
2, 16, 113, 793, 5553, 38872, 272106, 1904744, 13333209, 93332465, 653327257, 4573290800, 32013035602, 224091249216, 1568638744513, 10980471211593, 76863298481153, 538043089368072, 3766301625576506 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..19.

Index entries for linear recurrences with constant coefficients, signature (7,0,1,-7).

FORMULA

G.f.: x*(2+2*x+x^2) / ( (x-1)*(7*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 30 2015

CROSSREFS

Sequence in context: A117628 A288971 A288970 * A125725 A288965 A207420

Adjacent sequences:  A037561 A037562 A037563 * A037565 A037566 A037567

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified January 23 07:07 EST 2020. Contains 331168 sequences. (Running on oeis4.)