Triangle read by rows: T(n,k) is the number of connected unlabeled tiered posets with n elements and height k.
A361958
Triangle read by rows: T(n,k) is the number of connected unlabeled tiered posets with n elements and height k.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =1a(6) =0a(7) =4a(8) =3a(9) =1a(10) =0a(11) =10a(12) =10a(13) =4a(14) =1a(15) =0a(16) =27a(17) =34a(18) =16a(19) =5a(20) =1a(21) =0a(22) =88a(23) =146a(24) =66a(25) =23a(26) =6a(27) =1a(28) =0a(29) =328
External references
- oeis: A361958