Shifted lower triangular matrix A238363 with a main diagonal of ones.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =2a(5) =1a(6) =2a(7) =-3a(8) =3a(9) =1a(10) =-6a(11) =8a(12) =-6a(13) =4a(14) =1a(15) =24a(16) =-30a(17) =20a(18) =-10a(19) =5a(20) =1a(21) =-120a(22) =144a(23) =-90a(24) =40a(25) =-15a(26) =6a(27) =1a(28) =720a(29) =-840