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A175156 2^(n-1) mod composite(n). 1
1, 2, 4, 8, 6, 8, 8, 8, 0, 8, 4, 11, 4, 8, 9, 8, 7, 4, 4, 0, 1, 32, 9, 32, 26, 2, 24, 8, 36, 32, 26, 32, 39, 42, 4, 20, 28, 7, 32, 8, 36, 32, 4, 2, 0, 57, 64, 60, 16, 2, 40, 60, 46, 48, 71, 50, 16, 8, 72, 32, 16, 32, 64, 8, 16, 32, 24, 35, 24 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..69.

PROG

(PARI) lista(nn) = {compo = select(n->(! isprime(n) && (n != 1)), vector(nn, i, i)); for (i = 1, #compo, print1(2^(i-1) % compo[i], ", "); ); } \\ Michel Marcus, Sep 11 2013

CROSSREFS

Cf. A000079, A002808, A175036, A175131.

Sequence in context: A246631 A320153 A138284 * A320152 A022478 A320151

Adjacent sequences:  A175153 A175154 A175155 * A175157 A175158 A175159

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Dec 02 2010

EXTENSIONS

More terms from Michel Marcus, Sep 11 2013

STATUS

approved

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Last modified December 10 23:17 EST 2019. Contains 329909 sequences. (Running on oeis4.)