3029594040domain: NAppears in sequencesFourth convolution of Catalan numbers: a(n) = 4*binomial(2*n+3,n)/(n+4).at n=17A002057An inverse Chebyshev transform of x^3.at n=18A099376Arises from enumeration of a certain class of partial zig-zag knight's paths on the square grid.at n=36A368378