A351234 - OEIS

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A351234

a(n) = A276085(gcd(A003415(n), A276086(n))).

0, 1, 0, 0, 0, 0, 6, 0, 2, 3, 0, 0, 0, 0, 2, 1, 0, 0, 0, 0, 2, 7, 0, 0, 0, 7, 8, 2, 0, 0, 0, 0, 0, 31, 0, 3, 6, 0, 32, 1, 0, 0, 0, 0, 2, 2, 12, 0, 30, 31, 8, 7, 30, 0, 0, 1, 0, 1, 0, 0, 0, 0, 2, 2, 2, 5, 0, 0, 2, 1, 0, 0, 0, 0, 2, 6, 6, 5, 0, 0, 0, 3, 0, 0, 0, 1, 8, 1, 36, 0, 0, 1, 2, 1, 60, 3, 0, 0, 30, 8, 36, 0, 30

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OFFSET

0,7

LINKS

Antti Karttunen, Table of n, a(n) for n = 0..11550

Index entries for sequences related to primorial base

FORMULA

a(n) = A276085(A327858(n) = A276085(gcd(A003415(n), A276086(n))).

a(n) = n - A351233(n).

PROG

(PARI)

A002110(n) = prod(i=1, n, prime(i));