# A182026 (b-file synthesized from sequence entry) 0 0 1 0 2 0 3 0 4 0 5 288 6 3504 7 26936 8 168000 9 930240 10 4775232 11 23279256 12 109368864 13 499928000 14 2237835600 15 9854764920 16 42836127360 17 184246957440 18 785668464000 19 3326326610400 20 13998420079488 21 58611422003904 22 244341952079456 23 1014823115578800 24 4201232634318720 25 17343550105777280 26 71420954783418240 27 293472577948946760 28 1203572398002156000