0,3

Table of n, a(n) for n=0..69.

A. Karttunen, Gatomorphisms (with the complete Scheme source)

Index entries for sequences that are permutations of the natural numbers

(Scheme function implementing this automorphism on list-structures:)

(define (gmA074686! s) (cond ((pair? s) (gmA074686! (cdr s)) (gmrobr! s))) s)

Inverse of A074685. a(n) = A057163(A074690(A057163(n))). Occurs in A073200.

Sequence in context: A123500 A074689 A122331 * A120705 A122296 A122359

Adjacent sequences: A074683 A074684 A074685 * A074687 A074688 A074689

nonn

Antti Karttunen, Sep 11 2002

approved