# A148289 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 5 4 13 5 34 6 102 7 304 8 925 9 2930 10 9314 11 30227 12 99654 13 329616 14 1106171 15 3739369 16 12717657 17 43624104 18 150207317 19 520337650 20 1811959226 21 6331767583 22 22228799924 23 78284646709 24 276640110054 25 980924228341 26 3486919529824 27 12430652320859 28 44419798994329 29 159093066856160 30 571130418694862 31 2054173729933912