A365279 Inverse permutation to A365278.

0, 1, 3, 2, 7, 15, 6, 31, 63, 4, 5, 11, 14, 127, 255, 30, 511, 1023, 12, 13, 27, 62, 2047, 4095, 126, 8191, 16383, 8, 9, 19, 10, 23, 47, 22, 95, 191, 28, 29, 59, 254, 32767, 65535, 510, 131071, 262143, 60, 61, 123, 1022, 524287, 1048575, 2046, 2097151, 4194303

Offset

0,3

Links

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

Rémy Sigrist, PARI program

Index entries for sequences that are permutations of the natural numbers

Formula

a(3*n) = 2*a(n).

a(A032924(k)) = 2^k - 1 for any k > 0.

A023416(a(n)) = A077267(n).

Example

A365278(42) = 273, hence a(273) = 42.

Prog

(PARI) See Links section.

Crossrefs

Cf. A023416, A032924, A077267, A365278.

Sequence in context: A320769 A358283 A363584 * A260141 A344494 A286940

Adjacent sequences: A365276 A365277 A365278 * A365280 A365281 A365282

Keyword

nonn,base

Author

Rémy Sigrist, Aug 31 2023

Status

approved