# A095023 (b-file synthesized from sequence entry) 1 1 2 0 3 1 4 1 5 2 6 4 7 5 8 11 9 18 10 36 11 63 12 117 13 220 14 407 15 760 16 1435 17 2682 18 5074 19 9683 20 18392 21 35113 22 67054 23 128503 24 246433 25 473717 26 911310 27 1756933 28 3390711 29 6551833 30 12673497 31 24546404 32 47584981 33 92331321 34 179315178 35 348550417 36 678028865 37 1319937828 38 2571418193