A324875 Xor-Moebius transform of A324865, where A324865(n) = A323243(n) - A156552(n).

0, 0, 1, 1, 3, 0, 7, 0, 7, 7, 15, 1, 31, 6, 10, 8, 63, 7, 127, 4, 19, 0, 255, 0, 19, 12, 12, 13, 511, 4, 1023, 8, 26, 16, 18, 12, 2047, 126, 80, 16, 4095, 18, 8191, 15, 1, 480, 16383, 8, 35, 17, 68, 19, 32767, 12, 59, 12, 368, 234, 65535, 14, 131071, 336, 4, 40, 38, 15, 262143, 3, 506, 22, 524287, 28, 1048575, 1788, 11, 109, 58, 89

Offset: 1

Author

Antti Karttunen, Mar 18 2019

Keywords

• nonn

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 sequences computed from indices in prime factorization
• Index entries for sequences related to sigma(n)

Crossrefs

Cf. A156552, A323243, A324714, A324865, A324867, A324877.

Programs

PARI

A324865(n) = (A323243(n) - A156552(n)); \\ Needs also code from A323243.
A324875(n) = { my(v=0); fordiv(n, d, if(issquarefree(n/d), v=bitxor(v, A324865(d)))); (v); };