# A080833 (b-file synthesized from sequence entry) 0 1 1 1 2 3 3 19 4 145 5 1401 6 16051 7 213403 8 3223809 9 54514225 10 1019601091 11 20890209891 12 465156779473 13 11181638663209 14 288536019179955 15 7953590111627371 16 233211718410856321 17 7246720953253750113 18 237849724555558441219 19 8221578401608012672435 20 298505383888840158941841