# A139552 (b-file synthesized from sequence entry) 0 1 1 1 2 1 3 1 4 1 5 1 6 2 7 2 8 2 9 6 10 6 11 6 12 12 13 12 14 12 15 60 16 60 17 60 18 60 19 60 20 60 21 420 22 420 23 420 24 840 25 840 26 840 27 2520 28 2520 29 2520 30 2520 31 2520 32 2520 33 27720 34 27720 35 27720 36 27720 37 27720 38 27720 39 360360 40 360360 41 360360 42 360360 43 360360 44 360360 45 360360 46 360360 47 360360 48 720720