# A073516 (b-file synthesized from sequence entry) 1 1 2 3 3 19 4 146 5 1129 6 9142 7 77025 8 664277 9 5837665 10 52064915 11 469864125 12 4281198201 13 39319600765 14 363545360347 15 3380562309312 16 31590949437540 17 296487794277035 18 2793170342851930 19 26402713858800478 20 250324979315879678 21 2379753569255122805 22 22678735843184786383