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.

A250553 Inverse permutation to A250552.

Original entry on oeis.org

1, 2, 3, 4, 5, 7, 9, 13, 6, 8, 11, 15, 10, 12, 14, 17, 19, 16, 18, 21, 23, 25, 20, 22, 27, 29, 31, 33, 35, 26, 37, 28, 24, 30, 39, 32, 34, 41, 43, 36, 38, 45, 40, 42, 44, 46, 47, 48, 49, 50, 51, 55, 52, 53, 57, 54, 56, 59, 61, 58, 60, 63, 65, 62, 66, 64, 68
Offset: 1

Views

Author

Reinhard Zumkeller, Dec 10 2014

Keywords

Crossrefs

Cf. A250552 (inverse), A247204 (fixed points).

Programs

  • Haskell
    import Data.List (elemIndex); import Data.Maybe (fromJust)
    a250553 = (+ 1) . fromJust . (`elemIndex` a250552_list)