A113233 Inverse permutation to A109812.

1, 2, 4, 3, 6, 9, 16, 5, 10, 7, 20, 12, 26, 14, 28, 8, 13, 11, 22, 19, 24, 30, 39, 17, 33, 36, 41, 44, 51, 54, 76, 15, 18, 25, 43, 21, 37, 34, 48, 23, 31, 60, 80, 46, 57, 85, 104, 27, 66, 62, 71, 64, 90, 83, 109, 68, 88, 100, 102, 74, 112, 107, 162, 29, 35, 32, 45, 42, 61, 67

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

Formula

A113234(n) = a(a(n)).

Prog

(Haskell)
import Data.List (elemIndex); import Data.Maybe (fromJust)
a113233 = (+ 1) . fromJust . (`elemIndex` a109812_list)
-- Reinhard Zumkeller, Sep 15 2014

Crossrefs

Cf. A109812, A113232, A113234, A305370.

Sequence in context: A376905 A332878 A376903 * A051849 A283961 A333029

Adjacent sequences: A113230 A113231 A113232 * A113234 A113235 A113236

Keyword

nonn,base

Author

Reinhard Zumkeller, Oct 19 2005

Extensions

a(63) corrected by Reinhard Zumkeller, Sep 15 2014

Status

approved