# A307543 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 7 5 12 6 21 7 37 8 66 9 118 10 210 11 373 12 662 13 1175 14 2087 15 3709 16 6592 17 11714 18 20813 19 36977 20 65695 21 116722 22 207389 23 368486 24 654716 25 1163271 26 2066840 27 3672256 28 6524693 29 11592791 30 20597577 31 36596883 32 65023721 33 115531233 34 205270716 35 364715855 36 648010941 37 1151357116