# A334645 (b-file synthesized from sequence entry) 0 0 1 0 2 18 3 52 4 277 5 1752 6 12120 7 88692 8 674751 9 5282160 10 42267384 11 344152080 12 2842055359 13 23746693240 14 200383750632 15 1705243729560 16 14617677294675 17 126106202849760 18 1094034474058488 19 9538676631305712 20 83536778390997780 21 734521734171474400 22 6481894477750488160