3800305

Appears in sequences

• Crystal ball sequence for 7-dimensional cubic lattice.at n=14A001849
• a(n) = T(2n, n), where T is the Delannoy triangle (A008288).at n=7A026000
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) = Sum_{j=0..n} binomial(k*n,n-j) * binomial(k*n+j,j).at n=52A341470