# A218117 (b-file synthesized from sequence entry) 0 1 1 2 2 19 3 198 4 2961 5 49566 6 938322 7 19083624 8 412160478 9 9305822076 10 217855152321 11 5251363667622 12 129704365956114 13 3269927116717728 14 83893626609970281 15 2185188966488265718 16 57673989852987800966 17 1539973309401567102832 18 41544812360973818992909