A257502 Inverse permutation to A078783.

0, 1, 4, 2, 7, 10, 3, 5, 13, 16, 19, 22, 25, 6, 8, 28, 31, 34, 37, 40, 43, 46, 49, 52, 55, 9, 11, 58, 61, 64, 67, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97, 100, 103, 106, 109, 112, 115, 118, 12, 14, 121, 124, 127, 130, 133, 136, 139, 142, 145, 148, 151, 154

Offset: 0

Author

Reinhard Zumkeller, May 01 2015

Keywords

• nonn

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..10000

Crossrefs

Cf. A078783.

Programs

Haskell

import Data.List (elemIndex); import Data.Maybe (fromJust)
a257502 = fromJust . (`elemIndex` a078783_list)