A074765 Number of composites that are a concatenation nk of n and k for values of k from 1 to n.

0, 2, 2, 2, 4, 5, 5, 7, 8, 6, 10, 11, 10, 13, 12, 13, 15, 16, 14, 18, 18, 17, 20, 20, 22, 22, 22, 25, 26, 26, 26, 29, 26, 30, 28, 31, 32, 33, 32, 34, 35, 35, 37, 39, 40, 39, 42, 44, 42, 44, 48, 46, 49, 44, 50, 48, 49, 49, 53, 52, 52, 56, 53, 57, 57, 60, 60, 60, 61, 61, 65, 63