A331282 If A061395(n) < A001222(n), then a(n) = 1, otherwise a(n) = 0.

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

Offset

1

Links

Antti Karttunen, Table of n, a(n) for n = 1..65537

Index entries for characteristic functions

Index entries for sequences computed from indices in prime factorization

Formula

For all n >= 1, a(A000040(n)) = a(A088902(n)) = 0.

Prog

(PARI)
A061395(n) = if(n>1, primepi(vecmax(factor(n)[, 1])), 0);
A331282(n) = (A061395(n)<bigomega(n));

Crossrefs

Cf. A000040, A001222, A061395, A088902.

Cf. also A331169, A331281.

Sequence in context: A342023 A342024 A285464 * A331169 A144602 A275855

Adjacent sequences: A331279 A331280 A331281 * A331283 A331284 A331285

Keyword

nonn

Author

Antti Karttunen, Jan 13 2020

Status

approved