Triangle read by rows: The inverse Bell transform of the triple factorial numbers (A007559).

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =-1a(8) =3a(9) =1a(10) =0a(11) =3a(12) =-1a(13) =6a(14) =1a(15) =0a(16) =-15a(17) =5a(18) =5a(19) =10a(20) =1a(21) =0a(22) =105a(23) =-35a(24) =0a(25) =25a(26) =15a(27) =1a(28) =0a(29) =-945