# A203068 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 1 4 3 5 6 6 16 7 37 8 101 9 252 10 691 11 1819 12 5014 13 13630 14 37915 15 105125 16 295229 17 829714 18 2350106 19 6671030 20 19035055 21 54452982 22 156358967 23 450089260 24 1299394185 25 3759776618 26 10904685696 27 31690917170 28 92283005769 29 269201392276 30 786639839881 31 2302254813072 32 6748059023185 33 19806420012004