A015627 Quadruples of different integers from [ 2,n ] with no global factor.

0, 0, 0, 1, 5, 15, 34, 69, 121, 205, 314, 479, 679, 961, 1290, 1745, 2239, 2919, 3650, 4599, 5619, 6949, 8290, 10057, 11861, 14105, 16418, 19343, 22165, 25819, 29424, 33799, 38199, 43631, 48780, 55325, 61649, 69199, 76632, 85771, 94235, 104895