# A318226 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 8 5 25 6 80 7 286 8 1070 9 4280 10 17946 11 78907 12 361248 13 1718001 14 8456130 15 42980034 16 225066289 17 1212028798 18 6701265897 19 37986122037 20 220477639797 21 1308833637621 22 7938564964369 23 49151551028767 24 310388888456536 25 1997635594602629 26 13093695854320203 27 87349973125826943