Number of partitions of n into proper divisors of n, cf. A027751.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =1a(6) =7a(7) =1a(8) =9a(9) =4a(10) =10a(11) =1a(12) =44a(13) =1a(14) =13a(15) =13a(16) =35a(17) =1a(18) =80a(19) =1a(20) =91a(21) =17a(22) =19a(23) =1a(24) =457a(25) =6a(26) =22a(27) =22a(28) =155a(29) =1