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%I
%S 1,2,3,7,11,27,31,67,83,119,135,235,251,395,431,495,559,815,851,1175,
%T 1239,1383,1483,1967,2031,2431,2575,2899,3043,3827,3891,4791,5047,
%U 5447,5703,6279,6423,7719,8043,8619,8875,10475,10619,12383
%N 1+Sum_{i=1..n} phi(i)^2.
%Y Cf. A005728.
%K nonn
%O 0,2
%A _N. J. A. Sloane_.