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.

A230873 Numbers that do not appear in A230871.

Original entry on oeis.org

6, 14, 15, 20, 28, 38, 40, 42, 48, 51, 52, 54, 72, 78, 84, 86, 88, 90, 96, 102, 103, 108, 110, 113, 114, 120, 124, 125, 126, 127, 132, 138, 150, 156, 162, 164, 168, 174, 180, 197, 198, 204, 210, 216, 220, 222, 224, 228, 236, 238, 245, 248, 250, 252, 258, 262, 270, 276, 279, 285, 286, 295, 298, 304, 306, 310, 315, 316
Offset: 1

Views

Author

N. J. A. Sloane, Nov 07 2013

Keywords

Comments

Complement of A230872.

Crossrefs

Programs

  • Haskell
    a230873 n = a230873_list !! (n-1)
    a230873_list = f [0..] a230872_list where
       f (u:us) vs'@(v:vs) = if u == v then f us vs else u : f us vs'
    -- Reinhard Zumkeller, Nov 08 2013