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%I #4 Mar 30 2012 18:56:08
%S 1,2,4,6,7,10,11,16,17,18,19,22,25,26,27,29,30,31,36,38,40,41,42,43,
%T 46,47,49,52,57,58
%N a(n) = least positive integer > a(n-1) and not a(j)*a(k) + a(k)*a(i) + a(i)*a(j) for 1<=i<=j<=k<=n.
%K nonn
%O 1,2
%A _Clark Kimberling_
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