A050365 Number of ways to write n as an identity mterm, where an identity mterm is an unordered sum which is either 2, or 1 + an unordered product of distinct identity mterms.

1, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 6, 6, 8, 9, 11, 11, 15, 15, 19, 21, 25, 25, 33, 33, 39, 42, 50, 50, 63, 63, 74, 78, 89, 91, 110, 110, 125, 131, 152, 152, 181, 181, 206, 217, 242, 242, 285, 286, 322, 333, 372, 372, 428, 432, 486, 501, 551, 551, 636, 636, 699, 724, 799