a(n) = number of consistent orderings of 1..n based only on factorization.
A094206
a(n) = number of consistent orderings of 1..n based only on factorization.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =2a(4) =3a(5) =5a(6) =9a(7) =25a(8) =66a(9) =158a(10) =424a(11) =1048a(12) =2445a(13) =5736a(14) =17069a(15) =88674a(16) =241698a(17) =648786a(18) =1600339a(19) =5379356
External references
- oeis: A094206