512365

Appears in sequences

• Central decanomial coefficients: largest coefficient of (1 + x + ... + x^9)^n.at n=7A025015
• Revert transform of 2*x*(1-x-x^3-x^5+x^6)-x/(1+x).at n=10A049186
• The size of the largest antichain in the 7-dimensional hypercubic lattice of size n; also the coefficient of x^floor(7*(n-1)/2) in (1 + x + ... + x^(n-1))^7.at n=9A133458