a(n) = (m(n)*n)! / (n!)^(m(n)+1), where m(n) is the largest prime power <= n.
A263884
a(n) = (m(n)*n)! / (n!)^(m(n)+1), where m(n) is the largest prime power <= n.
Terms
- a(0) =1a(1) =3a(2) =280a(3) =2627625
External references
- oeis: A263884
A263884
a(n) = (m(n)*n)! / (n!)^(m(n)+1), where m(n) is the largest prime power <= n.