Triangle T(n, k) = (n+2)!*(n*(n+1)*(2*n+1)/6)!/( (k^2)! * abs(2 + 2*k^2 - (n*(n + 1)*(2*n+1)/6))! ), read by rows.
A123147
Triangle T(n, k) = (n+2)!*(n*(n+1)*(2*n+1)/6)!/( (k^2)! * abs(2 + 2*k^2 - (n*(n + 1)*(2*n+1)/6))! ), read by rows.
Terms
- a(0) =1a(1) =6a(2) =1a(3) =480a(4) =2880a(5) =1a(6) =21840a(7) =2882880a(8) =18162144000a(9) =40040a(10) =626400a(11) =473558400a(15) =14968800a(16) =41254012800
External references
- oeis: A123147