1,2

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

Index entries for sequences that are permutations of the natural numbers

(Haskell)

import Data.List (elemIndex)

import Data.Maybe (fromJust)

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

-- Reinhard Zumkeller, Feb 14 2013

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

Sequence in context: A264965 A266644 A055265 * A266643 A321464 A263273

Adjacent sequences: A117919 A117920 A117921 * A117923 A117924 A117925

nonn

Reinhard Zumkeller, Apr 03 2006

Edited by M. F. Hasler, Dec 14 2015

approved