A249918 - OEIS

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A249918

Inverse permutation to A203069.

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

Index entries for sequences that are permutations of the natural numbers

PROG

(Haskell)

import Data.List (elemIndex); import Data.Maybe (fromJust)

a249918 = (+ 1) . fromJust . (`elemIndex` a203069_list)

CROSSREFS

Cf. A203069, A249920.