# A337721 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 9 5 23 6 62 7 179 8 549 9 1773 10 6003 11 21233 12 78187 13 298894 14 1183387 15 4842221 16 20438964 17 88849325 18 397183838 19 1823456223 20 8587051052 21 41434641992 22 204654311282 23 1033757421996 24 5335693879201 25 28118977852767 26 151192761513229 27 828884087889407