Triangle T(n, k, q) = c(n, q)/(c(k, q)*c(n-k, q)) where c(n,q) = Product_{j=1..n} (q^j -1)^(n-j) and q = 3, read by rows.
A173504
Triangle T(n, k, q) = c(n, q)/(c(k, q)*c(n-k, q)) where c(n,q) = Product_{j=1..n} (q^j -1)^(n-j) and q = 3, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =1a(6) =1a(7) =16a(8) =16a(9) =1a(10) =1a(11) =416a(12) =3328a(13) =416a(14) =1a(15) =1a(16) =33280a(17) =6922240a(18) =6922240a(19) =33280a(20) =1a(21) =1a(22) =8053760a(23) =134014566400a(25) =134014566400a(26) =8053760a(27) =1a(28) =1a(29) =5863137280a(34) =5863137280
External references
- oeis: A173504