cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A355066 Inverse permutation to A355065.

Original entry on oeis.org

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

Views

Author

Rémy Sigrist, Jun 17 2022

Keywords

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

Crossrefs

Cf. A090252, A355065.

Programs

  • PARI
    See Links section.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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