Number of compositions of n into divisors of n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =6a(5) =2a(6) =25a(7) =2a(8) =56a(9) =20a(10) =129a(11) =2a(12) =1628a(13) =2a(14) =742a(15) =450a(16) =5272a(17) =2a(18) =45316a(19) =2a(20) =83344a(21) =3321a(22) =29967a(23) =2a(24) =5105722a(25) =572a(26) =200390a(27) =26426a(28) =5469759a(29) =2