Least k such that n*prime(k) <= k*tau(k).

Terms

a(0) =2a(1) =24a(2) =180a(3) =840a(4) =2520a(5) =5040a(6) =15120a(7) =27720a(8) =55440a(9) =110880a(10) =166320a(11) =221760a(12) =332640a(13) =554400a(14) =720720a(15) =1081080a(16) =1441440a(17) =1441440a(18) =2162160a(19) =2882880a(20) =3603600a(21) =4324320a(22) =7207200a(23) =7207200a(24) =8648640a(25) =10810800a(26) =14414400a(27) =21621600a(28) =21621600a(29) =21621600