Triangular array read by rows. T(n,k) is the number of elements of rank k in the order complex of the poset P = [n] X [n], n=0, k=0 or n>0, 0<=k<=2n-1.
A337192
Triangular array read by rows. T(n,k) is the number of elements of rank k in the order complex of the poset P = [n] X [n], n=0, k=0 or n>0, 0<=k<=2n-1.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =4a(5) =5a(6) =2a(7) =1a(8) =9a(9) =27a(10) =37a(11) =24a(12) =6a(13) =1a(14) =16a(15) =84a(16) =216a(17) =309a(18) =252a(19) =110a(20) =20a(21) =1a(22) =25a(23) =200a(24) =800a(25) =1875a(26) =2751a(27) =2570a(28) =1490a(29) =490
External references
- oeis: A337192