Triangle T(n, k, q) = ((1-q)/(1-q^k))*c(n-1, q)*c(n, q)/(c(k-1,q)^2*c(n-k,q)*c(n-k+1, q)), where c(n, q) = Product_{j=1..n} (1-q^j) and q = 5, read by rows.
A172302
Triangle T(n, k, q) = ((1-q)/(1-q^k))*c(n-1, q)*c(n, q)/(c(k-1,q)^2*c(n-k,q)*c(n-k+1, q)), where c(n, q) = Product_{j=1..n} (1-q^j) and q = 5, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =31a(5) =1a(6) =1a(7) =806a(8) =806a(9) =1a(10) =1a(11) =20306a(12) =527956a(13) =20306a(14) =1a(15) =1a(16) =508431a(17) =333038706a(18) =333038706a(19) =508431a(20) =1a(21) =1a(22) =12714681a(23) =208533483081a(25) =208533483081a(26) =12714681a(27) =1a(28) =1a(29) =317886556a(34) =317886556
External references
- oeis: A172302