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%I #11 Apr 11 2021 02:59:02
%S 4,8,12,1,16,20,25,2,29,33,37,3,41,46,50,5,54,58,62,6,67,71,75,79,7,
%T 83,87,92,9,96,100,104,10,108,113,117,11,121,125,129,13,134,138,142,
%U 146,14,150,154,159,15,163,167,171,17,175,180,184,18,188,192,196,19,201,205
%N Self-inverse integer permutation induced by Beatty sequences for 4*Pi/3 and 4*Pi/(4*Pi-3).
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/BeattySequence.html">Beatty Sequence</a>
%H <a href="/index/Per#IntegerPermutation">Index entries for sequences that are permutations of the natural numbers</a>
%H <a href="/index/Be#Beatty">Index entries for sequences related to Beatty sequences</a>
%F a(n) = A109239(n) for n <= 26;
%F a(A164086(n)) = A164087(n) and a(A164087(n)) = A164086(n).
%Y Cf. A109239, A164086, A164087.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Aug 11 2009
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