A023547 Convolution of natural numbers >= 2 and A023532.
2, 3, 6, 10, 13, 18, 24, 31, 37, 45, 54, 64, 75, 85, 97, 110, 124, 139, 155, 170, 187, 205, 224, 244, 265, 287, 308, 331, 355, 380, 406, 433, 461, 490, 518, 548, 579, 611, 644, 678, 713, 749, 786, 822, 860, 899, 939, 980, 1022, 1065, 1109, 1154
Offset: 1