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Self-inverse permutation of integers induced when A106485 is restricted to A126011.
1

%I #7 Mar 31 2012 13:21:13

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

%N Self-inverse permutation of integers induced when A106485 is restricted to A126011.

%C The Scheme-program given cannot in practice compute this further than n=21, as A106485(A126011(22))=36893488147419103232. However, the further terms could be deduced by other means. This sequence is a permutation of the nonnegative integers because combinatorial games form a group under (game) addition and each game has a well-defined, unique negative.

%H A. Karttunen, <a href="/A126000/a126000.scm.txt">Scheme-program for computing this sequence.</a>

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

%F a(n) = A126013(A106485(A126011(n))).

%K nonn

%O 0,2

%A _Antti Karttunen_, Jan 02 2007

%E Typos corrected by _Franklin T. Adams-Watters_, Apr 06 2009