A360122 - OEIS

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A360122

Parity of A360121, where A360121 is Dirichlet convolution of A342001 with A342002.

0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1

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OFFSET

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..30030

Index entries for characteristic functions

Index entries for sequences related to primorial base

FORMULA

a(n) = A000035(A360121(n)).

Apparently, a(n) >= A360123(n) for all n. [See A360124 for the positions of differences]

PROG

(PARI) A360122(n) = (A360121(n)%2);

CROSSREFS