Triangle T(n, k) = Product_{j=1..k} Product_{i=0..j-1} ( 1 - (n-k+1)*(i+1) ) with T(n, 0) = 1 and T(n, n) = n!, read by rows.
A156693
Triangle T(n, k) = Product_{j=1..k} Product_{i=0..j-1} ( 1 - (n-k+1)*(i+1) ) with T(n, 0) = 1 and T(n, n) = n!, read by rows.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =-1a(5) =2a(6) =1a(7) =-2a(8) =-3a(9) =6a(10) =1a(11) =-3a(12) =-20a(13) =45a(14) =24a(15) =1a(16) =-4a(17) =-63a(18) =1600a(19) =4725a(20) =120a(21) =1a(22) =-5a(23) =-144a(24) =14553a(25) =1408000a(26) =-4465125a(27) =720a(28) =1a(29) =-6
External references
- oeis: A156693