Denominators of the fractions f(n) such that (6/Pi^2)*f(n) is the asymptotic density of the numbers k with A280292(k) = sopfr(k) - sopf(k) = n.
A338560
Denominators of the fractions f(n) such that (6/Pi^2)*f(n) is the asymptotic density of the numbers k with A280292(k) = sopfr(k) - sopf(k) = n.
Terms
- a(0) =1a(1) =1a(2) =6a(3) =12a(4) =12a(5) =360a(6) =72a(7) =560a(8) =2160a(9) =30240a(10) =12600a(11) =399168a(12) =453600a(13) =86486400a(14) =209563200a(15) =1111968000a(16) =363242880a(18) =163459296000
External references
- oeis: A338560