Number of integer partitions of n whose parts all divide n and whose length also divides n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =2a(6) =5a(7) =2a(8) =5a(9) =3a(10) =5a(11) =2a(12) =21a(13) =2a(14) =5a(15) =6a(16) =9a(17) =2a(18) =22a(19) =2a(20) =21a(21) =6a(22) =5a(23) =2a(24) =134a(25) =3a(26) =5a(27) =6a(28) =23a(29) =2