# A343685 (b-file synthesized from sequence entry) 0 1 1 3 2 19 3 182 4 2328 5 37234 6 714674 7 16004064 8 409587144 9 11792756640 10 377261048592 11 13275818803488 12 509646721402032 13 21195285059025648 14 949279217570464944 15 45552467588773815744 16 2331624264279599225088 17 126804353256754734370176 18 7301857349340031590836352 19 443826900013575494233057536