1362816

Appears in sequences

• Theta series of D_8 lattice.at n=23A008430
• Theta series of direct sum of 5 copies of hexagonal lattice.at n=15A008656
• Molecular topological indices of the lattice graphs.at n=12A192832
• a(n) = H(n-1, n, n+1) where H(a, b, c) = (a + b + c)*(a + b - c)*(b + c - a)*(c + a - b) is Heron's polynomial.at n=26A339488