93699005400domain: NAppears in sequencesa(n) = (6*n)!/((n!)^3*(3*n)!).at n=4A001421Denominator of the 2n-th raw moment for distribution of distances between two points picked at random in the interior of a unit cube.at n=13A160694a(n) is the smallest number with exactly n divisors that are square pyramidal numbers.at n=28A358543