5284823040

Appears in sequences

• Least common multiple of n! and n^n.at n=7A055774
• a(n) = Product_{k=1..n} lcm(n,k).at n=7A071248
• a(n) is n! times the coefficient of Pi^floor(n/2) in the volume of an n-dimensional unit ball.at n=17A094941
• Expansion of e.g.f. (1+4*x)/(1-4*x).at n=8A098560
• a(n) = 2^n * floor(n/2)!at n=17A271216
• Irregular triangle T(n,k) read by rows of the coefficients of Pi^(2k) in the expansion of Sum_{k>=1} (1 / (4k^2-1)^n) with denominator 2^(2n)*(n-1)!.at n=24A382784