# A089473 (b-file synthesized from sequence entry) 0 1 1 2 2 4 3 8 4 16 5 20 6 39 7 62 8 116 9 152 10 286 11 396 12 748 13 1024 14 1893 15 2512 16 4485 17 5638 18 9529 19 10878 20 16993 21 17110 22 23952 23 20224 24 24047 25 15578 26 14560 27 6274 28 3910 29 760 30 221 31 2