# A306575 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 3 4 6 5 11 6 21 7 40 8 77 9 148 10 285 11 550 12 1061 13 2049 14 3957 15 7644 16 14768 17 28535 18 55138 19 106549 20 205902 21 397906 22 768967 23 1486070 24 2871932 25 5550233 26 10726300 27 20729542 28 40061784 29 77423250 30 149628008 31 289170949 32 558851751 33 1080037175 34 2087280839 35 4033881485