A180077 - OEIS

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A180077

Inverse permutation to A180076.

4

0, 1, 3, 5, 2, 7, 11, 4, 9, 13, 6, 19, 15, 23, 27, 49, 8, 21, 17, 12, 25, 29, 37, 43, 33, 10, 47, 58, 14, 99, 56, 62, 31, 39, 20, 45, 35, 16, 93, 127, 24, 60, 106, 28, 75, 143, 50, 64, 71, 79, 41, 95, 22, 68, 129, 18, 164, 148, 120, 112, 141, 26, 110, 108, 30, 89, 77, 38, 91, 52

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OFFSET

0,3

COMMENTS

A180079(n) = a(a(n));

a(A180078(n)) = A180078(a(n)) = A180076(n).

LINKS

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

Index entries for sequences that are permutations of the natural numbers

PROG

(Haskell)

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

a180077 = fromJust . (`elemIndex` a180076_list)

-- Reinhard Zumkeller, Mar 13 2014

CROSSREFS

Sequence in context: A026208 A120837 A208754 * A095749 A137988 A258367

Adjacent sequences: A180074 A180075 A180076 * A180078 A180079 A180080

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 14 2010

STATUS

approved