#A143474: a(n) = smallest k such that A141501(k) = 2*n+1. #Table of n, a(n) for n = 1..69 1 1 2 2 3 4 4 6 5 12 6 30 7 24 8 72 9 60 10 144 11 120 12 180 13 240 14 360 15 1008 16 720 17 1440 18 840 19 1260 20 3780 21 7920 22 3360 23 10920 24 2520 25 7560 26 5040 27 10080 28 69300 29 15120 30 864864 31 92400 32 27720 33 60480 34 65520 35 617760 36 240240 37 55440 38 196560 39 110880 40 471240 41 166320 42 6177600 43 277200 44 982800 45 6283200 46 554400 47 831600 48 1081080 49 3931200 50 720720 51 1663200 52 153489600 53 3326400 54 1441440 55 11138400 56 6126120 57 2162160 58 9424800 59 3603600 60 174594420 61 4324320 62 7207200 63 310390080 64 10810800 65 56548800 66 133660800 67 28828800 68 27387360 69 21621600 #END