-416179814400domain: ZAppears in sequencesa(n) = (-1)^(n+1) * 2^n * n!^2.at n=8A055546Row 2 of array in A288580.at n=14A092396Triangle read by rows: row n gives coefficients in expansion of Product_{i=1..n} (x - (2i)^2), highest powers first.at n=35A182867