# A150547 (b-file synthesized from sequence entry) 0 1 1 2 2 7 3 26 4 105 5 426 6 1823 7 7779 8 34008 9 149349 10 663184 11 2958204 12 13294636 13 59928609 14 271617284 15 1234268264 16 5629752155 17 25739993324 18 118012906757 19 542163615314 20 2496305115654 21 11513424162006 22 53198781619879 23 246173784632759 24 1140868462640989 25 5294108372165852 26 24598326710797491 27 114422531344401338