Triangle read by rows: A007318^(-1) * A128541.

Terms

a(0) =1a(1) =0a(2) =1a(3) =-1a(4) =-1a(5) =2a(6) =2a(7) =0a(8) =-4a(9) =3a(10) =-3a(11) =2a(12) =4a(13) =-9a(14) =5a(15) =4a(16) =-5a(17) =0a(18) =15a(19) =-20a(20) =8a(21) =-5a(22) =9a(23) =-10a(24) =-15a(25) =45a(26) =-40a(27) =13a(28) =6a(29) =-14