# A136750 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 4 4 8 5 17 6 35 7 74 8 155 9 329 10 692 11 1464 12 3098 13 6553 14 13873 15 29361 16 62165 17 131638 18 278787 19 590357 20 1250337 21 2648108 22 5608735 23 11879607 24 25161906 25 53295451 26 112886028 27 239108343 28 506466366 29 1072776347 30 2272316123 31 4813150684