# A012189 (b-file synthesized from sequence entry) 0 1 1 -4 2 84 3 -4488 4 450768 5 -73573248 6 17815591104 7 -6013430329728 8 2703233646006528 9 -1562922378845445120 10 1130630051482809369600 11 -1000815673354945580034048 12 1064286361791704604763115520