%I #5 Sep 23 2016 08:27:55
%S 1,5,13,27,48,76,114,163,224,299,388,494,617,758,920,1104,1310,1540,
%T 1796,2078,2389,2729,3100,3504,3940,4412,4919,5464,6048,6672,7338,
%U 8046,8799,9597,10441,11334,12277,13270,14315,15414,16568,17778,19045,20371,21758,23205
%N a(n) = [ 2nd elementary symmetric function of {sqrt(k)} ], k = 1,2,...,n.
%p SymmPolyn := proc(L::list,n::integer)
%p local c,a,sel;
%p a :=0 ;
%p sel := combinat[choose](nops(L),n) ;
%p for c in sel do
%p a := a+mul(L[e],e=c) ;
%p end do:
%p a;
%p end proc:
%p A025193 := proc(n)
%p [seq(sqrt(k),k=1..n)] ;
%p SymmPolyn(%,2) ;
%p floor(%) ;
%p end proc: # _R. J. Mathar_, Sep 23 2016
%K nonn
%O 2,2
%A _Clark Kimberling_