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A117922 Inverse of A055265, assuming it is a permutation, as conjectured. 4
1, 2, 3, 4, 7, 6, 5, 8, 9, 10, 17, 16, 11, 14, 13, 12, 15, 18, 19, 22, 21, 20, 23, 24, 29, 32, 31, 28, 25, 26, 27, 36, 33, 30, 35, 40, 41, 34, 37, 38, 43, 42, 39, 48, 47, 54, 51, 44, 45, 50, 55, 46, 49, 52, 53, 56, 57, 64, 69, 72, 59, 62, 67, 66, 61, 60, 71, 68, 63, 58, 73, 70 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

T. D. Noe, Table of n, a(n) for n = 1..1000

Index entries for sequences that are permutations of the natural numbers

PROG

(Haskell)

import Data.List (elemIndex)

import Data.Maybe (fromJust)

a117922 = (+ 1) . fromJust . (`elemIndex` a055265_list)

-- Reinhard Zumkeller, Feb 14 2013

CROSSREFS

A117924(n) = a(a(n)); A117925 lists fixed points.

Sequence in context: A264965 A266644 A055265 * A266643 A263273 A264966

Adjacent sequences:  A117919 A117920 A117921 * A117923 A117924 A117925

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Apr 03 2006

EXTENSIONS

Edited by M. F. Hasler, Dec 14 2015

STATUS

approved

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Last modified May 26 18:58 EDT 2017. Contains 287129 sequences.