# A089093 (b-file synthesized from sequence entry) 1 0 2 1 3 4 4 16 5 51 6 154 7 418 8 1098 9 2726 10 6570 11 15308 12 34839 13 77412 14 168882 15 361896 16 764097 17 1590938 18 3272640 19 6656426 20 13403600 21 26739028 22 52892435 23 103806344 24 202263470 25 391460137 26 752923563 27 1439737364 28 2738144031 29 5181025837