Inverse of a generalized Stirling number triangle of first kind.

Terms

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