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A021559 Decimal expansion of 1/555. 4
0, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1, 8, 0, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..98.

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

FORMULA

a(n) = (1/3)*{-4*(n mod 3) + 2*[(n+1) mod 3] + 11*[(n+2) mod 3]} - 8*[C(2*n,n) mod 2]}, with n>=0. - Paolo P. Lava, Jun 26 2007

a(n) = (n+2)^3 mod 9, n>0. - Gary Detlefs, Feb 20 2011

G.f.: x^2*(1 + 8*x)/(1 - x^3). - Ilya Gutkovskiy, Jun 04 2016

PROG

(PARI) 1/555.0 \\ Michel Marcus, Jun 04 2016

CROSSREFS

Sequence in context: A241215 A272343 A011314 * A167176 A195447 A160389

Adjacent sequences:  A021556 A021557 A021558 * A021560 A021561 A021562

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane

EXTENSIONS

Formula corrected by Paolo P. Lava, Nov 20 2009

STATUS

approved

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Last modified July 22 21:28 EDT 2019. Contains 325227 sequences. (Running on oeis4.)