Column 0 of triangle A055138.

Terms

a(0) =1a(1) =-1a(2) =0a(3) =1a(4) =-1a(5) =-1a(6) =4a(7) =-1a(8) =-19a(9) =31a(10) =120a(11) =-483a(12) =-933a(13) =8623a(14) =6748a(15) =-189589a(16) =41561a(17) =5147391a(18) =-6328400a(19) =-170622599a(20) =394612599a(21) =6807529823a(22) =-23890335372a(23) =-322371010985