# A290032 (b-file synthesized from sequence entry) 0 0 1 1 2 2 3 5 4 10 5 37 6 154 7 1125 8 9114 9 121957 10 1188762 11 19782757 12 449979290 13 7603084389 14 147015738266 15 4800786586725 16 197509352924058 17 6557890088131685 18 254650888299357082 19 7815799643948571749 20 315002221645968581530