# A319893 (b-file synthesized from sequence entry) 1 10 2 90 3 720 4 5040 5 30240 6 151200 7 604800 8 1814400 9 3628800 10 3628800 11 3628780 12 3628420 13 3621960 14 3512520 15 1768320 16 -24278400 17 -387072000 18 -5075481600 19 -60945696000 20 -670438944000 21 -670438943970 22 -670438943130 23 -670438919640 24 -670438286280 25 -670421843280