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%I #2 Mar 31 2012 13:21:20
%S 0,1,2,5,6,9,10,207,14,45,30,21,52,25,26,33,124,13,66,105,22,245,70,
%T 231,50,113,110,81,118,37,86,225,49,173,142,411,98,61,58,101,198,141,
%U 134,201,148,153,334,325,158,187,103,161,178,133,190,217,292,205,242
%N a(n) = Position of the first occurrence of n in A166040. -1 if it does not occur there.
%Y A166089 gives the corresponding odd numbers. See also A166097, A166098.
%K nonn
%O 0,3
%A _Antti Karttunen_, Oct 08 2009