# A147719 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 2 4 6 5 21 6 91 7 462 8 2646 9 16841 10 117931 11 900922 12 7456086 13 66453661 14 634585771 15 6463837382 16 69955114326 17 801626558481 18 9696295037611 19 123457062745842 20 1650499351041366 21 23116291464379301 22 338474628835617451