# A074510 (b-file synthesized from sequence entry) 0 3 1 12 2 74 3 540 4 4178 5 33012 6 262874 7 2099340 8 16783778 9 134237412 10 1073800874 11 8590111740 12 68720008178 13 549757408212 14 4398051294074 15 35184386437740 16 281475019757378 17 2251799942825412 18 18014398896902474 19 144115189238117340