-33592domain: ZAppears in sequencesExpansion of sqrt(1 - 4*x) in powers of x.at n=11A002420An inverse Chebyshev transform of (1-x)^2.at n=19A099364Triangle read by rows: T(n,k) = binomial(2(n-k),n-k)/(1-2(n-k)).at n=66A106190Composition of Catalan and Fibonacci numbers.at n=56A189675