# A047191 (b-file synthesized from sequence entry) 1 0 2 0 3 0 4 0 5 0 6 0 7 2 8 3 9 18 10 24 11 84 12 105 13 280 14 336 15 756 16 882 17 1785 18 2044 19 4004 20 4554 21 9504 22 10890 23 25740 24 29887 25 77077 26 90090 27 234454 28 273559 29 685984 30 795704 31 1905904 32 2196740 33 5094390 34 5845008