69002

Appears in sequences

• Coordination sequence for 5-dimensional cubic lattice.at n=15A008413
• Triangle read by rows of numbers of paths in a lattice satisfying certain conditions.at n=50A071949
• Number of 6-bead necklaces labeled with numbers -n..n not allowing reversal, with sum zero and first and second differences in -n..n.at n=14A209010
• a(n) = [x^(3*n)] ( (1 + x)/(1 - x) )^n.at n=5A333715
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals, where T(n,k) is the coefficient of x^(k*n) in expansion of ( (1 + x)/(1 - x) )^n.at n=41A336521
• Square array read by ascending antidiagonals: T(n,k) = [x^(n*k)] ((1 + x)/(1 - x))^k for n, k >= 1.at n=25A363418