# A121585 (b-file synthesized from sequence entry) 0 1 1 0 2 1 3 1 4 0 5 1 6 3 7 1 8 1 9 1 10 12 11 5 12 3 13 3 14 1 15 60 16 27 17 14 18 12 19 6 20 1 21 360 22 168 23 83 24 62 25 36 26 10 27 1 28 2520 29 1200 30 583 31 393 32 242 33 86 34 15 35 1 36 20160 37 9720 38 4698 39 2941 40 1845 41 758 42 176 43 21 44 1 45 181440 46 88200 47 42606 48 25285 49 15856 50 7151 51 1990 52 323 53 28 54 1 55 1814400 56 887040