# A152056 (b-file synthesized from sequence entry) 0 1 1 9 2 84 3 810 4 8028 5 81324 6 837648 7 8734392 8 91882512 9 972602640 10 10340011584 11 110257202592 12 1178108743104 13 12605895573696 14 135013638364416 15 1446985635811200 16 15514677652177152 17 166399318145915136