# A150840 (b-file synthesized from sequence entry) 0 1 1 2 2 8 3 32 4 138 5 604 6 2703 7 12315 8 56663 9 263196 10 1230758 11 5788966 12 27366503 13 129887780 14 618733335 15 2956325427 16 14163969859 17 68023437777 18 327380888885 19 1578644180769 20 7625361651529 21 36890862105021 22 178729294951629 23 867041001587589 24 4211192195399009 25 20476247078858780 26 99664557968320422