A115007 Row 3 of array in A114999.
0, 6, 16, 31, 50, 75, 103, 137, 175, 218, 265, 318, 374, 436, 502, 573, 648, 729, 813, 903, 997, 1096, 1199, 1308, 1420, 1538, 1660, 1787, 1918, 2055, 2195, 2341, 2491, 2646, 2805, 2970, 3138, 3312, 3490, 3673, 3860, 4053, 4249, 4451, 4657, 4868, 5083, 5304, 5528
Offset: 0