Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = n! * k! * [x^n * y^k] 1 / (1 - log(1-x) * log(1-y))^2.
A382799
Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where A(n,k) = n! * k! * [x^n * y^k] 1 / (1 - log(1-x) * log(1-y))^2.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =2a(5) =0a(6) =0a(7) =2a(8) =2a(9) =0a(10) =0a(11) =4a(12) =14a(13) =4a(14) =0a(15) =0a(16) =12a(17) =40a(18) =40a(19) =12a(20) =0a(21) =0a(22) =48a(23) =144a(24) =260a(25) =144a(26) =48a(27) =0a(28) =0a(29) =240
External references
- oeis: A382799