Triangle read by rows. T(n, k) = Sum_{j=0..n-k} binomial(-n, j) * A268437(n - k, j).

Terms

a(0) =1a(1) =-1a(2) =1a(3) =10a(4) =-2a(5) =1a(6) =-270a(7) =24a(8) =-3a(9) =1a(10) =14056a(11) =-720a(12) =44a(13) =-4a(14) =1a(15) =-1197000a(16) =40320a(17) =-1500a(18) =70a(19) =-5a(20) =1a(21) =151169040a(22) =-3628800a(23) =92064a(24) =-2700a(25) =102a(26) =-6a(27) =1a(28) =-26521775280a(29) =479001600