A023616 Self-convolution of A023532.
1, 0, 2, 2, 1, 4, 3, 4, 4, 6, 5, 6, 9, 6, 9, 8, 10, 12, 11, 10, 13, 14, 13, 16, 15, 16, 16, 20, 17, 18, 21, 20, 23, 22, 23, 24, 23, 24, 28, 28, 27, 28, 31, 28, 31, 32, 31, 36, 33, 34, 35, 38, 38, 38, 39, 38, 41, 42, 41, 42, 45, 46, 47, 46, 45, 48, 49, 48, 52, 52, 51
Offset: 1