991493848554domain: NAppears in sequencesa(n) = binomial coefficient C(2n, n-7).at n=16A004313Binomial coefficient C(46,n).at n=16A010962Binomial coefficient C(n,30).at n=16A010983Row sums of triangle A099575.at n=30A099576a(n) = binomial(3*n+1, n+1).at n=15A117671a(n) = binomial(s(n), n) where s(n) = n-th semiprime.at n=15A117927