The number of sets of n positive integers strictly less than 2*n such that no integer in the set divides another.
A192298
The number of sets of n positive integers strictly less than 2*n such that no integer in the set divides another.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =3a(4) =2a(5) =4a(6) =6a(7) =6a(8) =10a(9) =14a(10) =13a(11) =26a(12) =34a(13) =24a(14) =48a(15) =72a(16) =60a(17) =120a(18) =168a(19) =168a(20) =264a(21) =396a(22) =312a(23) =624a(24) =816a(25) =816a(26) =1632a(27) =2208a(28) =1808a(29) =3616
External references
- oeis: A192298