51021117810domain: NAppears in sequencesBinomial coefficients C(2n+1, n-2).at n=17A003516Binomial coefficient C(39,n).at n=17A010955Binomial coefficient C(39,n).at n=22A010955a(n) = binomial(n,17).at n=22A010970a(n) = binomial(n,22).at n=17A010975T(2n+5,n), array T as in A050186; a count of aperiodic binary words.at n=17A051198