A175156 a(n) = 2^(n-1) mod composite(n).
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
Offset: 1
Keywords
Programs
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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
Extensions
More terms from Michel Marcus, Sep 11 2013