0,3

The permutation satisfies A000040(a(n)) = a(A000040(n)) for all positive n except for n=2.

In contrast to A235485/A235486 this permutation also contains infinite cycles.

Antti Karttunen, Table of n, a(n) for n = 0..9856

Index entries for sequences that are permutations of the natural numbers

a(n) = A235201(A235489(n)).

(Scheme) (define (A235493 n) (A235201 (A235489 n)))

Inverse: A235494. Cf. also A235201, A235489, A235485/A235486, A234743/A234744.

Sequence in context: A225252 A235201 A292958 * A105081 A235485 A026167

Adjacent sequences: A235490 A235491 A235492 * A235494 A235495 A235496

nonn

Antti Karttunen, Jan 11 2014

Name and incorrect claim about multiplicativity corrected by Antti Karttunen, Feb 12 2018

approved