# A099526 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 19 5 44 6 100 7 224 8 505 9 1142 10 2584 11 5840 12 13195 13 29816 14 67384 15 152288 16 344161 17 777770 18 1757692 19 3972248 20 8976979 21 20287268 22 45847612 23 103611968 24 234154873 25 529171550 26 1195885936 27 2702607776 28 6107680171 29 13802874992