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

Author

Rémy Sigrist, Apr 05 2020

Keywords

• nonn
• base

Comments

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

Examples

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

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..6561
• Rémy Sigrist, PARI program for A333780

Crossrefs

Cf. A333773.

Programs

PARI

See Links section.