# A052174 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 3 4 2 5 1 6 6 7 8 8 3 9 1 10 20 11 20 12 15 13 4 14 1 15 50 16 75 17 45 18 24 19 5 20 1 21 175 22 210 23 189 24 84 25 35 26 6 27 1 28 490 29 784 30 588 31 392 32 140 33 48 34 7 35 1 36 1764 37 2352 38 2352 39 1344 40 720 41 216 42 63 43 8 44 1 45 5292 46 8820 47 7560 48 5760 49 2700 50 1215 51 315 52 80 53 9 54 1