Row 2 of array in A288580.

Terms

a(0) =1a(1) =-1a(2) =-4a(3) =9a(4) =64a(5) =-225a(6) =-2304a(7) =11025a(8) =147456a(9) =-893025a(10) =-14745600a(11) =108056025a(12) =2123366400a(13) =-18261468225a(14) =-416179814400