Square array A(n,k), n >= 0, k >= 1, read by antidiagonals: A(n,k) = n! * [x^n] 1/(1 - k*x)^(n/k).

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =6a(6) =1a(7) =1a(8) =8a(9) =60a(10) =1a(11) =1a(12) =10a(13) =105a(14) =840a(15) =1a(16) =1a(17) =12a(18) =162a(19) =1920a(20) =15120a(21) =1a(22) =1a(23) =14a(24) =231a(25) =3640a(26) =45045a(27) =332640a(28) =1a(29) =1