# A093045 (b-file synthesized from sequence entry) 0 0 1 0 2 2 3 4 4 18 5 50 6 176 7 546 8 1806 9 5780 10 18810 11 60698 12 196704 13 636090 14 2059174 15 6662420 16 21562002 17 69772930 18 225795088 19 730679922 20 2364543390 21 7651801300 22 24761784522 23 80130760714 24 259308681408 25 839140370250 26 2715515523446