A324731 Characteristic function of A324551: a(n) = 1 if 2*A156552(n) < A323243(n), and 0 otherwise.

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

Offset

1

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000 (based on Hans Havermann's factorization of A156552)

Index entries for sequences related to binary expansion of n

Index entries for characteristic functions

Index entries for sequences computed from indices in prime factorization

Formula

a(n) = 1 if A323244(n) is negative, and 0 otherwise.

For n > 1, a(n) = A294937(A156552(n)).

Prog

(PARI) A324731(n) = ((2*A156552(n))<A323243(n));

Crossrefs

Cf. A156552, A294937, A323243, A323244, A324732.

Sequence in context: A353808 A353482 A336355 * A011734 A276653 A355443

Adjacent sequences: A324728 A324729 A324730 * A324732 A324733 A324734

Keyword

nonn

Author

Antti Karttunen, Mar 12 2019

Status

approved