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.

A259605 (A259565(n) + A259565(n+1)) / 2.

Original entry on oeis.org

2, 5, 6, 7, 10, 13, 14, 15, 19, 22, 21, 22, 26, 29, 30, 31, 34, 37, 38, 39, 42, 46, 47, 46, 51, 53, 55, 58, 55, 57, 62, 65, 66, 67, 70, 73, 74, 77, 79, 78, 82, 86, 85, 86, 91, 94, 93, 94, 101, 102, 101, 102, 105, 110, 109, 110, 114, 118, 119, 118, 122, 127
Offset: 1

Views

Author

Reinhard Zumkeller, Jun 30 2015

Keywords

Comments

All terms are squarefree by definition of A259565.

Crossrefs

Programs

  • Haskell
    a259605 n = a259605_list !! (n-1)
    a259605_list = zipWith ((flip div 2 .) . (+))
                           a259565_list $ tail a259565_list