# A284869 (b-file synthesized from sequence entry) 1 0 2 0 3 1 4 1 5 1 6 4 7 5 8 16 9 37 10 120 11 344 12 1175 13 3807 14 13224 15 45645 16 161705 17 575325 18 2074088 19 7521818 20 27502445 21 101134999 22 374128188