178405157domain: NAppears in sequencesPartial sums of Catalan numbers (A000108).at n=17A014137Bisection of A014137.at n=8A099975a(n) = Sum_{k=0..floor(n/2)} Catalan(k).at n=34A110199a(n) = Sum_{k=0..floor(n/2)} Catalan(k).at n=35A110199