141523200domain: NAppears in sequences(3n+1)!/(4*(3n-1)).at n=3A028918Denominators in expansion of 1/(Sum_{n >= 0} (x^n/n!)*binomial(2n,n)/(n+1)).at n=13A178957Numbers other than prime powers divisible by the sum, the sum of squares and the sum of cubes of their prime divisors.at n=19A268418