# A353180 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 25 5 130 6 810 7 5880 8 48790 9 455491 10 4725020 11 53915730 12 671141130 13 9050528630 14 131437406100 15 2045160117000 16 33944105995801 17 598591246152934 18 11176863039391538 19 220287874849834596 20 4570225746232479690 21 99557506547622369750 22 2272028399094852806100