# A035857 (b-file synthesized from sequence entry) 0 1 1 992 2 246512 3 27390112 4 1728939192 5 70807488864 6 2048715010256 7 44450256810016 8 755891034102316 9 10424936982850656 10 119820002520271088 11 1173396885194646560 12 9972151083876157960 13 74688593871319112160