# A149114 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 9 4 30 5 90 6 308 7 963 8 3438 9 11234 10 40152 11 135794 12 490832 13 1683168 14 6124726 15 21354425 16 78003828 17 274576966 18 1008967842 19 3580440440 20 13189340250 21 47178798464 22 174283519352 23 626647788638 24 2320640184718 25 8387827155210 26 31116693592454 27 112928607749642 28 419803477131832 29 1528896400255678