12565671261domain: NAppears in sequencesBinomial coefficients C(n,50).at n=9A017714Binomial coefficients C(59,n).at n=9A017775Binomial coefficients C(2*n+9,9).at n=25A053138a(n) = 2*binomial(5*n+10, n)/(n+2).at n=10A233738