A116942 Permutation of the natural numbers in conjunction with A116939 and A003056.

0, 1, 3, 2, 4, 6, 5, 7, 10, 8, 11, 9, 12, 15, 13, 16, 14, 17, 21, 18, 22, 19, 23, 20, 24, 28, 25, 29, 26, 30, 27, 31, 36, 32, 37, 33, 38, 34, 39, 35, 40, 45, 41, 46, 42, 47, 43, 48, 44, 49, 55, 50, 56, 51, 57, 52, 58, 53, 59, 54, 60, 66, 61, 67, 62, 68, 63, 69, 64, 70, 65, 71, 78

Offset: 0

Author

Reinhard Zumkeller, Feb 27 2006

Keywords

• nonn

Comments

Inverse: A116941;

A116939(n) = A003056(a(n)).

Links

• Reinhard Zumkeller, Table of n, a(n) for n = 0..10000
• Index entries for sequences that are permutations of the natural numbers

Programs

Haskell

import Data.List (elemIndex)
import Data.Maybe (fromJust)
a116942 = fromJust . (`elemIndex` a116941_list)
-- Reinhard Zumkeller, Jun 28 2013