A023563 Convolution of A023531 and A000201.
0, 1, 3, 4, 7, 11, 13, 17, 21, 26, 31, 35, 41, 47, 53, 59, 66, 73, 79, 86, 95, 102, 111, 119, 126, 136, 144, 154, 163, 173, 184, 193, 202, 212, 223, 235, 245, 257, 270, 279, 291, 302, 313, 327, 339, 351, 366, 378, 391, 403, 416, 431, 443, 456, 471
Offset: 1