A131752 - OEIS

A131752

Number of ways of choosing the largest subset of {1,2,...,n} such that no two distinct elements differ by a perfect square.

%I #2 Mar 30 2012 17:21:00

%S 1,2,4,7,10,16,24,36,56,76,112,160

%N Number of ways of choosing the largest subset of {1,2,...,n} such that no two distinct elements differ by a perfect square.

%Y Cf. A100719, A131753, A131754.

%K nonn

%O 1,2

%A _Olivier Gérard_, Sep 17 2007