# A071720 (b-file synthesized from sequence entry) 2 0 3 1 4 8 5 75 6 864 7 12005 8 196608 9 3720087 10 80000000 11 1929229929 12 51597803520 13 1516443410339 14 48594782035968 15 1686702392578125 16 63050394783186944 17 2525667398391013935 18 107946249863639334912 19 4903504030649559850577 20 235929600000000000000000