# A087809 (b-file synthesized from sequence entry) 0 1 1 4 2 29 3 229 4 1847 5 14974 6 121430 7 983476 8 7952111 9 64193728 10 517447289 11 4165721377 12 33500374796 13 269166095800 14 2161064409680 15 17339917293304 16 139060729285871 17 1114752741216196 18 8933074352513183 19 71564554425680839