# A257934 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 8 5 14 6 26 7 48 8 89 9 163 10 300 11 552 12 1016 13 1868 14 3436 15 6320 16 11625 17 21381 18 39326 19 72332 20 133040 21 244698 22 450070 23 827808 24 1522577 25 2800455 26 5150840 27 9473872 28 17425168 29 32049880 30 58948920 31 108423968 32 199422769 33 366795657 34 674642394 35 1240860820 36 2282298872 37 4197802086 38 7720961778