A333780 a(n) = g(-n) - g(n), where g corresponds to the inverse of A333773.

0, 1, 4, 3, 2, 11, 12, 13, 10, 9, 8, 5, 6, 7, 34, 33, 32, 35, 36, 37, 40, 39, 38, 29, 30, 31, 28, 27, 26, 23, 24, 25, 16, 15, 14, 17, 18, 19, 22, 21, 20, 101, 102, 103, 100, 99, 98, 95, 96, 97, 106, 105, 104, 107, 108, 109, 112, 111, 110, 119, 120, 121, 118

Offset

0,3

Comments

This sequence appears to be a self-inverse permutation of the nonnegative integers.

Links

Rémy Sigrist, Table of n, a(n) for n = 0..6561

Rémy Sigrist, PARI program for A333780

Example

For n = 2:
- A333773(4) = 2, g(2) = 4,
- A333773(8) = -2, g(-2) = 8,
- so a(2) = 8 - 4 = 4.

Prog

(PARI) See Links section.

Crossrefs

Cf. A333773.

Sequence in context: A105109 A227182 A065367 * A033882 A062111 A181596

Adjacent sequences: A333777 A333778 A333779 * A333781 A333782 A333783

Keyword

nonn,base

Author

Rémy Sigrist, Apr 05 2020

Status

approved