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

Author

Rémy Sigrist, Nov 21 2020

Keywords

• nonn

Examples

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

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

Crossrefs

Cf. A000961, A305215, A305325.

Programs

PARI

See Links section.

Formula

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