Column 5 of Inverse partition triangle A038498.

Terms

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