A097806^24 * A000594.

Terms

a(0) =1a(1) =0a(2) =-48a(3) =-24a(4) =1104a(5) =1128a(6) =-15892a(7) =-25368a(8) =156240a(9) =360640a(10) =-1057908a(11) =-3600696a(12) =4417678a(13) =26438568a(14) =-3155508a(15) =-144207816a(16) =-112109568a(17) =564538680a(18) =1002957320a(19) =-1344487080a(20) =-5096138658a(21) =-111333800a(22) =17182425012a(23) =17552839368a(24) =-34668142443a(25) =-86942440944a(26) =4993723500a(27) =236551774320