# A374728 (b-file synthesized from sequence entry) 1 1 2 1 3 1 4 3 5 7 6 19 7 45 8 105 9 239 10 507 11 1079 12 2303 13 4829 14 10425 15 23263 16 53363 17 127995 18 318983 19 816057 20 2133241 21 5640135 22 14975051 23 39772751 24 105322879 25 277547989 26 727276225 27 1894282195 28 4903985955 29 12621154315 30 32302574959 31 82248961437 32 208426306113 33 525884062427