A361647 Inverse permutation to A361646.

0, 1, 2, 3, 4, 6, 7, 5, 8, 10, 12, 13, 14, 15, 11, 9, 16, 18, 20, 21, 24, 28, 29, 25, 26, 30, 31, 27, 22, 23, 19, 17, 32, 34, 36, 37, 40, 44, 45, 41, 48, 52, 56, 57, 58, 59, 53, 49, 50, 54, 60, 61, 62, 63, 55, 51, 42, 46, 47, 43, 38, 39, 35, 33, 64, 66, 68, 69

Offset: 0

Author

Rémy Sigrist, Mar 19 2023

Keywords

• nonn
• base

Examples

			A361646(42) = 56, so a(56) = 42.
		

Links

• Rémy Sigrist, Table of n, a(n) for n = 0..8192
• Rémy Sigrist, PARI program
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A361646.

Programs

PARI

See Links section.

Formula

a(n) < 2^k iff n < 2^k.