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A037509 Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,2,0. 0
1, 10, 80, 641, 5130, 41040, 328321, 2626570, 21012560, 168100481, 1344803850, 10758430800, 86067446401, 688539571210, 5508316569680, 44066532557441, 352532260459530, 2820258083676240 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

Index entries for linear recurrences with constant coefficients, signature (8,0,1,-8).

Index entries for 2-automatic sequences.

FORMULA

G.f.: x*(1+2*x) / ( (x-1)*(8*x-1)*(1+x+x^2) ). - R. J. Mathar, Apr 27 2015

A007094(a(n)) = A037511(n). - R. J. Mathar, Apr 27 2015

PROG

(PARI) a(n)=([0, 1, 0, 0; 0, 0, 1, 0; 0, 0, 0, 1; -8, 1, 0, 8]^(n-1)*[1; 10; 80; 641])[1, 1] \\ Charles R Greathouse IV, Feb 13 2017

CROSSREFS

Sequence in context: A125373 A093145 A341917 * A037692 A126531 A200162

Adjacent sequences:  A037506 A037507 A037508 * A037510 A037511 A037512

KEYWORD

nonn,base,easy

AUTHOR

Clark Kimberling

STATUS

approved

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Last modified August 15 09:19 EDT 2022. Contains 356135 sequences. (Running on oeis4.)