5121436320

Appears in sequences

• a(n) = (n/(n+1)) * lcm(1,2,...,n+1).at n=21A025558
• a(n) = n*lcm{1,2,...,n}.at n=21A081528
• First differences of A003418(n) = lcm(1..n).at n=22A119944
• Earliest sequence such that xy | a(x+y) for all x>=1, y>=1.at n=21A169900