# A300793 (b-file synthesized from sequence entry) 1 1 2 3 3 13 4 75 5 561 6 5355 7 63405 8 894915 9 14511105 10 263544435 11 5284255725 12 116065424475 13 2778006733425 14 72093290744475 15 2017526711525325 16 60547198550713875 17 1938662110170410625 18 65941564342927147875 19 2374177441960545346125 20 90211614359319635056875