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A153186 Period 9: repeat 1,7,4,7,4,7,1,1,1. 0
1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1, 1, 7, 4, 7, 4, 7, 1, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Terms of the simple continued fraction of 30626/(sqrt(1363012565)-10009). - Paolo P. Lava, Feb 17 2009

LINKS

Table of n, a(n) for n=0..71.

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

FORMULA

a(n)=(1/108)*{11*(n mod 9)+11*[(n+1) mod 9]+11*[(n+2) mod 9]+83*[(n+3) mod 9]-25*[(n+4) mod 9]+47*[(n+5) mod 9]-25*[(n+6) mod 9]+47*[(n+7) mod 9]-61*[(n+8) mod 9]}, with n>=0 - Paolo P. Lava, Dec 22 2008

MATHEMATICA

PadRight[{}, 120, {1, 7, 4, 7, 4, 7, 1, 1, 1}] (* Harvey P. Dale, Sep 14 2019 *)

PROG

(PARI) a(n)=[1, 7, 4, 7, 4, 7, 1, 1, 1][n%9+1] \\ Charles R Greathouse IV, Jul 13 2016

CROSSREFS

Cf. A046163.

Sequence in context: A194361 A153586 A319883 * A085469 A050996 A085541

Adjacent sequences:  A153183 A153184 A153185 * A153187 A153188 A153189

KEYWORD

nonn,easy

AUTHOR

Paul Curtz, Dec 20 2008

EXTENSIONS

Edited by N. J. A. Sloane, Dec 25 2008

STATUS

approved

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Last modified November 13 17:34 EST 2019. Contains 329106 sequences. (Running on oeis4.)