Numbers k such that sigma(k) - usigma(k) > 3k.

Terms

a(0) =831600a(1) =1058400a(2) =1587600a(3) =1663200a(4) =1814400a(5) =1940400a(6) =1965600a(7) =2116800a(8) =2328480a(9) =2494800a(10) =2570400a(11) =2646000a(12) =2721600a(13) =2872800a(14) =2910600a(15) =2948400a(16) =3024000a(17) =3175200a(18) =3326400a(19) =3528000a(20) =3603600a(21) =3628800a(22) =3704400a(23) =3880800a(24) =3931200