A354033 - OEIS

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A354033

a(n) = 1 if n > 1 and n is a power of a prime of the form 4m+3, otherwise 0.

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

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OFFSET

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65539

Index entries for characteristic functions

FORMULA

a(n) = A174275(n) - A354031(n).

a(n) >= A354028(n).

PROG

(PARI) A354033(n) = { my(p=0); (isprimepower(n, &p) && (3==(p%4))); };

CROSSREFS

Characteristic function of A197504 \ {1}.