# A162366 (b-file synthesized from sequence entry) 0 1 1 24 2 299 3 2576 4 17249 5 95656 6 457170 7 1934920 8 7396155 9 25914720 10 84197296 11 256013184 12 734002335 13 1996645640 14 5180091511 15 12874497504 16 30770197710 17 70952341040 18 158302199085 19 342599792520 20 720836052690 21 1477396844040