# A343417 (b-file synthesized from sequence entry) 0 1 1 1 2 2 3 6 4 19 5 71 6 300 7 1370 8 6563 9 32272 10 161700 11 820166 12 4198764 13 21647353 14 112262033 15 585049063 16 3061951973 17 16084816384 18 84773694223