a(n) is the factor R(n) having prime factors < (2/3)*n^2 in A285388(n) = R(n)P(n).
A290583
a(n) is the factor R(n) having prime factors < (2/3)*n^2 in A285388(n) = R(n)P(n).
Terms
- a(0) =1a(1) =1a(2) =15a(3) =45a(4) =28665a(5) =119301a(6) =5945469075a(7) =349882586625
External references
- oeis: A290583