179894domain: NAppears in sequencesa(n) = C(n)*(4*n+1) where C(n) = Catalan numbers (A000108).at n=9A051944Tenth column (m=9) of (1,3)-Pascal triangle A095660.at n=10A095665Expansion of (1+x*c(x^2))^3/sqrt(1-4*x^2), c(x) the g.f. of A000108.at n=18A107232Multiples of 5291.at n=34A178027