# A057786 (b-file synthesized from sequence entry) 1 1 2 2 3 4 4 10 5 27 6 85 7 262 8 873 9 2917 10 10011 11 34561 12 120815 13 424468 14 1501441 15 5334181 16 19035075 17 68167472 18 244928324 19 882555803 20 3188480899 21 11546307356 22 41901879156 23 152359984459 24 554991766194 25 2024964145507