Fourth column of A008296.

Terms

a(0) =1a(1) =10a(2) =25a(3) =-35a(4) =49a(5) =0a(6) =-820a(7) =9020a(8) =-87164a(9) =859144a(10) =-8965320a(11) =100136400a(12) =-1199838576a(13) =15406135488a(14) =-211479420096