# A288230 (b-file synthesized from sequence entry) 0 1 1 3 2 5 3 9 4 18 5 36 6 71 7 138 8 268 9 522 10 1017 11 1980 12 3853 13 7498 14 14594 15 28406 16 55287 17 107604 18 209428 19 407608 20 793325 21 1544042 22 3005154 23 5848902 24 11383662 25 22155913 26 43121842 27 83927627 28 163347533 29 317921733 30 618768013 31 1204302235 32 2343921860 33 4561952576