A095261 -id:A095261 - cp's OEIS frontend

A095259 Smallest m such that A095258(m) = n.

1, 3, 2, 4, 10, 5, 21, 9, 6, 16, 18, 14, 19, 39, 25, 26, 11, 8, 51, 38, 46, 56, 20, 15, 17, 34, 7, 48, 50, 37, 78, 27, 67, 12, 52, 33, 64, 66, 69, 44, 169, 53, 134, 93, 95, 40, 22, 28, 47, 41, 29, 89, 91, 54, 96, 60, 70, 99, 312, 43, 202, 80, 157, 55, 63, 92, 130, 13

Offset: 1

Reinhard Zumkeller, May 31 2004

nonn

Inverse of A095258, if the conjecture is true, that this is a permutation: a(A095258(n)) = A095258(a(n)) = n;

A095261(n) = a(a(n)).

Index entries for sequences that are permutations of the natural numbers

import Data.List (elemIndex); import Data.Maybe (fromJust)
a095259 = (+ 1) . fromJust . (`elemIndex` a095258_list)
-- Reinhard Zumkeller, Dec 31 2014

Revised version: Reinhard Zumkeller, Dec 31 2014

A095260 a(n) = A095258(A095258(n)).

Original entry on oeis.org

1, 2, 3, 4, 9, 8, 32, 11, 18, 6, 25, 26, 99, 34, 235, 5, 15, 17, 68, 94, 27, 49, 241, 243, 24, 10, 102, 28, 19, 10519, 505, 74, 219, 16, 119, 506, 289, 23, 12, 21, 29, 925, 56, 46, 116, 7, 113, 48, 193, 51, 13, 73, 470, 54, 37, 47, 72, 174, 85, 22, 471, 479, 131

Offset: 1

Reinhard Zumkeller, May 31 2004

nonn

Integer permutation with inverse A095261: a(A095261(n)) = A095261(a(n)) = n;

A095259(a(n)) = a(A095259(n)) = A095258(n).

Index entries for sequences that are permutations of the natural numbers

Cf. A095258, A095259, A095261.

cp's OEIS Frontend

A095259 Smallest m such that A095258(m) = n.

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