A355066 Inverse permutation to A355065.

1, 2, 3, 5, 4, 7, 11, 13, 17, 19, 6, 23, 29, 31, 37, 41, 43, 47, 49, 53, 59, 61, 8, 9, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 77, 137, 139, 149, 151, 157, 163, 167, 10, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227, 229, 233, 239

Offset: 1

Author

Rémy Sigrist, Jun 17 2022

Keywords

• nonn

Comments

This sequence has similarities with the Two-Up sequence (A090252) as a(n) is coprime to the next n terms (and to the floor(n/2) previous terms).

Prime numbers appear in their natural order.

Examples

			A355065(77) = 39, so a(39) = 77.
		

Links

• Rémy Sigrist, PARI program
• Index entries for sequences that are permutations of the natural numbers

Crossrefs

Cf. A090252, A355065.

Programs

PARI

See Links section.