16*s^8 - 168*s^4*t^4 + 9*t^8, where s > 0, t = 1..s.

Terms

a(0) =-143a(1) =1417a(2) =-36608a(3) =91377a(4) =-110448a(5) =-938223a(6) =1005577a(7) =362752a(8) =-2376023a(9) =-9371648a(10) =6145009a(11) =4572304a(12) =-2195951a(13) =-20040176a(14) =-55859375a(15) =26656137a(16) =23392512a(17) =9296937a(18) =-28274688a(19) =-105690519a(20) =-240185088a(21) =91833457a(22) =85785232a(23) =59623057a(24) =-10435568a(25) =-156352559