# A155360 (b-file synthesized from sequence entry) 3 1 4 4 5 10 6 22 7 40 8 135 9 924 10 5789 11 30931 12 175032 13 1467331 14 18452914 15 249998893 16 3424732727 17 53967206180 18 1112604199677 19 29667024358722 20 907210467221174