# A328884 (b-file synthesized from sequence entry) 0 1 1 2 2 6 3 34 4 250 5 972 6 15498 7 109544 8 5961306 9 54891535 10 2488870076 11 246264587430 12 118503860254 13 16917328320424 14 31020551370600 15 459016311081816 16 25084010473396186126 17 22789919291848918932 18 3423598216929042597 19 82480361346228654485320 20 12440086312584102532500 21 121292379506812780007192