A025199 s(n) = [ S2/S1 ], where S2 and S1 are, respectively, the 2nd and first elementary symmetric functions of {sqrt(k), k = 1,2,...,n} ].

0, 1, 2, 3, 4, 5, 7, 8, 10, 11, 13, 15, 17, 18, 20, 23, 25, 27, 29, 31, 34, 36, 38, 41, 43, 46, 48, 51, 54, 57, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 90, 93, 96, 99, 103, 106, 110, 113, 116, 120, 124, 127, 131, 135, 139, 142, 146, 150