Triangle of coefficients of the Pbar polynomials, read by rows.

Terms

a(0) =1a(1) =-3a(2) =4a(3) =25a(4) =-56a(5) =32a(6) =-427a(7) =1228a(8) =-1184a(9) =384a(10) =12465a(11) =-41840a(12) =52416a(13) =-29184a(14) =6144a(15) =-555731a(16) =2079892a(17) =-3076288a(18) =2258688a(19) =-829440a(20) =122880a(21) =35135945a(22) =-142843304a(23) =237829600a(24) =-208562688a(25) =102279168a(26) =-26787840a(27) =2949120a(28) =-2990414715a(29) =12987478876