A324877 - OEIS

A324877

Xor-Moebius transform of A324867, where A324867(n) = A156552(n) XOR (A323243(n) - A156552(n)).

0, 1, 3, 3, 7, 6, 15, 4, 3, 11, 31, 13, 63, 30, 6, 0, 127, 11, 255, 28, 11, 48, 511, 24, 27, 108, 4, 61, 1023, 16, 2047, 24, 42, 208, 10, 20, 4095, 510, 48, 32, 8191, 58, 16383, 111, 25, 736, 32767, 56, 51, 9, 132, 211, 65535, 20, 11, 108, 240, 1770, 131071, 38, 262143, 3408, 52, 8, 70, 95, 524287, 387, 762, 62, 1048575, 44, 2097151, 7932, 19, 877, 10

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OFFSET

1,3

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)

PROG

(PARI)

A324867(n) = { my(k=A156552(n)); bitxor(k, (A323243(n)-k)); }; \\ Needs also code from A323243.

A324877(n) = { my(v=0); fordiv(n, d, if(issquarefree(n/d), v=bitxor(v, A324867(d)))); (v); };