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A359826
Parity of A353348, where A353348 is Dirichlet inverse of the characteristic function for numbers k such that A048675(k) is a multiple of 3.
4
1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1
OFFSET
1
FORMULA
a(n) = A353348(n) mod 2.
a(n) = a(A003961(n)) = a(A348717(n)), for all n >= 1.
a(n) <= A353350(n). [Follows because A332820 is a multiplicative semigroup. See comments in A353348]
PROG
(PARI) A359826(n) = (A353348(n)%2);
CROSSREFS
Characteristic function of A359827.
Cf. also A359836.
Sequence in context: A186741 A173864 A353348 * A353350 A354097 A374051
KEYWORD
nonn
AUTHOR
Antti Karttunen, Jan 17 2023
STATUS
approved