# A218382 (b-file synthesized from sequence entry) 1 1 2 3 3 48 4 828 5 8820 6 26100 7 417600 8 2114100 9 3009600 10 43864128 11 200278848 12 1013911668 13 7823392500 14 16222586688 15 259561387008 16 633694792500 17 4152982192128