# A281086 (b-file synthesized from sequence entry) 1 1 2 1 3 2 4 3 5 12 6 20 7 20 8 70 9 840 10 504 11 2520 12 27720 13 27720 14 51480 15 360360 16 180180 17 720720 18 1361360 19 4084080 20 77597520 21 15519504 22 470288 23 5173168 24 356948592 25 1784742960 26 686439600 27 26771144400 28 80313433200 29 80313433200 30 2329089562800 31 2329089562800 32 36100888223400