Triangle T(n, k, q) = t(n,q)/(t(k,q)*t(n-k,q)), where t(n, k) = Product_{j=1..n} q-Pochhammer(j, k+1, k+1)/(1-(k+1))^j and t(n, 0) = n!, with q = 1, read by rows.
A156950
Triangle T(n, k, q) = t(n,q)/(t(k,q)*t(n-k,q)), where t(n, k) = Product_{j=1..n} q-Pochhammer(j, k+1, k+1)/(1-(k+1))^j and t(n, 0) = n!, with q = 1, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =21a(8) =21a(9) =1a(10) =1a(11) =315a(12) =2205a(13) =315a(14) =1a(15) =1a(16) =9765a(17) =1025325a(18) =1025325a(19) =9765a(20) =1a(21) =1a(22) =615195a(23) =2002459725a(24) =30036895875a(25) =2002459725a(26) =615195a(27) =1a(28) =1a(29) =78129765
External references
- oeis: A156950