# A149195 (b-file synthesized from sequence entry) 0 1 1 1 2 4 3 10 4 38 5 127 6 494 7 1804 8 7250 9 27768 10 113603 11 448933 12 1858458 13 7499923 14 31317733 15 128292015 16 539273259 17 2233843666 18 9439572100 19 39437413808 20 167371595700 21 703994615004 22 2998532854976 23 12681319659582 24 54179682762863 25 230166423231860 26 985971775884988 27 4204379913759209