Triangular array read by rows: T(n,k) is the number of partial order relations on [n] that have exactly k components, n>=0, 0<=k<=n.
A352399
Triangular array read by rows: T(n,k) is the number of partial order relations on [n] that have exactly k components, n>=0, 0<=k<=n.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =1a(6) =0a(7) =12a(8) =6a(9) =1a(10) =0a(11) =146a(12) =60a(13) =12a(14) =1a(15) =0a(16) =3060a(17) =970a(18) =180a(19) =20a(20) =1a(21) =0a(22) =101642a(23) =24180a(24) =3750a(25) =420a(26) =30a(27) =1a(28) =0a(29) =5106612
External references
- oeis: A352399