%I #11 Jan 09 2016 16:07:50
%S 0,1,2,3,4,5,6,13,8,9,10,7,12,11,14,15,32,29,18,23,20,33,50,17,24,49,
%T 22,27,28,25,30,41,16,21,34,19,36,31,26,57,40,37,42,125,68,45,106,55,
%U 96,71,38,81,88,89,54,101,56,117,118,61,60,83,82,99,116,65,78,119,52,51,70,113,72,77,62,75,92,43,114,107,80,69
%N Permutation of nonnegative integers: a(n) = A264966(2*n) / 2.
%H Antti Karttunen, <a href="/A266642/b266642.txt">Table of n, a(n) for n = 0..9842</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%F a(n) = A264966(2*n) / 2.
%F As a composition of related permutations:
%F a(n) = A057889(A263272(n)).
%o (Scheme) (define (A266642 n) (/ (A264966 (* 2 n)) 2))
%Y Inverse: A266641.
%Y Cf. A057889, A263272, A264966, A265329, A265369, A266635, A266636, A266643, A266644.
%K nonn,base
%O 0,3
%A _Antti Karttunen_, Jan 04 2016
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