# A223526 (b-file synthesized from sequence entry) 1 1 2 1 3 3 4 4 5 24 6 9 7 28 8 252 9 189 10 27 11 280 12 3360 13 3780 14 1080 15 81 16 3640 17 54600 18 81900 19 35100 20 5265 21 243 22 58240 23 1048320 24 1965600 25 1123200 26 252720 27 23328 28 729 29 1106560 30 23237760 31 52284960 32 37346400 33 11203920 34 1551312 35 96957 36 2187 37 24344320 38 584263680 39 1533692160