4665375domain: NAppears in sequencesa(n) = binomial(n+6,6)*(2n+7)/7.at n=24A050486The number of divisors d of n! such that the symmetric group on n letters contains no elements of order d.at n=30A211392Expansion of Sum_{1<=i<=j<=k<=l} q^(i+j+k+l)/( (1-q^i)*(1-q^j)*(1-q^k)*(1-q^l) )^2.at n=24A374931