Generalized Stirling number triangle of first kind.

Terms

a(0) =1a(1) =-2a(2) =1a(3) =2a(4) =-3a(5) =1a(6) =0a(7) =2a(8) =-3a(9) =1a(10) =0a(11) =2a(12) =-1a(13) =-2a(14) =1a(15) =0a(16) =4a(17) =0a(18) =-5a(19) =0a(20) =1a(21) =0a(22) =12a(23) =4a(24) =-15a(25) =-5a(26) =3a(27) =1a(28) =0a(29) =48