311696domain: NAppears in sequencesa(n) = binomial(n+5,5)*(n+3)/3.at n=19A040977Partial sums of A051798.at n=19A051879Expansion of 1 / ((1 - x)^7*(1 + x)^5).at n=38A299337G.f. A(x,y) = lim_{N->infinity} (1 - P(N,x,y))/(2*x)^N, where P(0,x,y) = -y, and P(n+1,x,y) = sqrt(1 - 4*x + 4*x*P(n,x,y)) for n = 0..N-1.at n=48A352093