149240

Appears in sequences

• a(n) = floor(n(n-1)(n-2)(n-3)/18).at n=42A011928
• One-sixth of the area of some primitive Heronian triangles with a distance of 2n+1 between the median and altitude points on the longest side.at n=25A074076
• Least common multiple of reversals of divisors of n in decimal representation.at n=55A188649
• Number of -n..n arrays x(0..3) of 4 elements with zero sum and nonzero second differences.at n=29A200554