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A074690 Permutation of natural numbers induced by the Catalan bijection gmA074690! acting on the parenthesizations encoded by A014486/A063171. 5

%I #6 Oct 15 2015 10:55:23

%S 0,1,3,2,6,7,8,5,4,14,15,16,17,18,19,20,22,11,12,21,13,10,9,37,38,39,

%T 40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,60,61,62,28,29,63,30,

%U 31,32,56,57,64,33,34,59,36,25,26,58,35,27,24,23,107,108,109,110,111

%N Permutation of natural numbers induced by the Catalan bijection gmA074690! acting on the parenthesizations encoded by A014486/A063171.

%H A. Karttunen, <a href="http://www.iki.fi/~kartturi/matikka/Nekomorphisms/gatomorf.htm">Gatomorphisms</a> (with the complete Scheme source)

%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>

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

%o (define (gmA074690! s) (cond ((pair? s) (gmA074690! (car s)) (gmrobl! s))) s)

%Y Inverse of A074689. a(n) = A057163(A074686(A057163(n))). Cf. A074681-A074688. Occurs in A073200.

%K nonn

%O 0,3

%A _Antti Karttunen_, Sep 11 2002

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)