3931426800

Appears in sequences

• a(n) = binomial(2*n+1,n)*(n+1)^2.at n=13A002544
• a(n) = C(n+2,2)*C(n,floor(n/2)).at n=26A107231
• a(n) = lcm(n^2, swinging_factorial(n)).at n=28A181860