A391569 a(n) = n XOR A391573(n).

0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 12, 0, 8, 8, 0, 0, 0, 0, 0, 0, 0, 24, 4, 0, 0, 16, 20, 16, 16, 0, 20, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 48, 48, 0, 8, 52, 0, 0, 0, 0, 32, 24, 40, 24, 32, 32, 32, 16, 0, 40, 40, 24, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 12, 0, 8, 8, 112, 0, 0, 0, 108, 0, 0, 96, 4, 96, 96, 0, 20, 16, 16, 104, 20

Offset

1,7

Links

Antti Karttunen, Table of n, a(n) for n = 1..16384

Index entries for sequences related to binary expansion of n.

Index entries for sequences related to carryless arithmetic.

Prog

(PARI) A391569(n) = bitxor(n, A391573(n));

Crossrefs

Cf. A003987, A048720, A391573, A391578 (positions of nonzero terms), A391579 (of 0's).

Cf. also A391586.

Sequence in context: A285132 A389453 A239261 * A395300 A242707 A236379

Adjacent sequences: A391566 A391567 A391568 * A391570 A391571 A391572

Keyword

nonn,base,look

Author

Antti Karttunen, Dec 19 2025

Status

approved