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%I #4 Mar 30 2012 18:56:05
%S 1,2,1,3,4,2,5,6,7,3,8,9,4,10,11,12,5,13,14,6,15,16,7,17,18,19,8,20,
%T 21,9,22,23,24,10,25,26,11,27,28,12,29,30,31,13,32,33,14,34,35,36,15,
%U 37,38,16,39,40,41,17,42,43,18,44,45,19,46,47,48
%N a(n) = j if n = [ j*sqrt(2) ], else a(n) = k if n = [ k*(2 + sqrt(2)) ].
%K nonn
%O 1,2
%A _Clark Kimberling_
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