A336816 Inverse permutation to A305325.

1, 2, 3, 5, 7, 4, 13, 25, 33, 8, 49, 6, 97, 14, 9, 193, 241, 34, 481, 10, 15, 50, 961, 26, 1921, 98, 2881, 16, 3841, 11, 7681, 15361, 51, 242, 17, 35, 18433, 482, 99, 27, 36865, 18, 73729, 52, 36, 962, 147457, 194, 294913, 1922, 243, 100, 442369, 2882, 53, 28

Offset

1,2

Links

Rémy Sigrist, Table of n, a(n) for n = 1..10000

Rémy Sigrist, PARI program for A336816

Index entries for sequences that are permutations of the natural numbers

Formula

a(A000961(n)) = 1 + Sum_{k = 1..n-1} A305215(k).

Example

A305325(18) = 42, so a(42) = 18.

Prog

(PARI) See Links section.

Crossrefs

Cf. A000961, A305215, A305325.

Sequence in context: A302847 A354964 A080164 * A182949 A245711 A246258

Adjacent sequences: A336813 A336814 A336815 * A336817 A336818 A336819

Keyword

nonn

Author

Rémy Sigrist, Nov 21 2020

Status

approved