# A218405 (b-file synthesized from sequence entry) 1 4 2 47616 3 293760 4 1782144 5 3485664 6 134209536 7 282977280 8 746444160 9 1459956960 10 1684126080 11 1716728832 12 27298252800 13 41233360896 14 376591138560 15 719045268480 16 1622308746240 17 38965526046720 18 41769966551040 19 985261739212800 20 3067660098994176