-1184040

Appears in sequences

• Expansion of (1-4*x)^(13/2).at n=21A020925
• G.f.: (1-16*x+28*x^2+56*x^3-140*x^4+56*x^5+28*x^6-16*x^7+x^8)/(x^2-x+1)^8.at n=21A112403
• First term of n-th difference sequence of (floor(Pi*k/3)), k >= 0.at n=28A325742
• Square array read by ascending antidiagonals: T(n,k) = [x^(3*k)] ( (1 + x)^(n+3)/(1 - x)^(n-3) )^k for n, k >= 0.at n=43A364519