1,2

Permutation of the natural numbers with inverse A179977; A179978(n)=a(a(n)); A179979 gives fixed points: a(A179979(n))=A179979(n).

abs(A007953(a(n+1)) - A007953(a(n))) = 1.

A179987(n)=A007953(a(n)); A007953(a(A179988(n)))=n; a(A179988(n))=A051885(n+1). - Reinhard Zumkeller, Aug 09 2010, Jul 10 2011

R. Zumkeller, Table of n, a(n) for n = 1..10000

Index entries for sequences that are permutations of the natural numbers

Sequence in context: A322260 A133504 A335492 * A179977 A326298 A124359

Adjacent sequences: A108968 A108969 A108970 * A108972 A108973 A108974

nonn,base

Reinhard Zumkeller, Jul 27 2005

Comment corrected and extended by Reinhard Zumkeller, Aug 04 2010

approved