440440

Appears in sequences

• a(n) = 7*(n+1)*binomial(n+6,7)/2.at n=9A027819
• a(n) = C(n+3,3) * C(n+5,5).at n=9A105946
• Kekulé numbers for certain benzenoids.at n=9A110690
• a(n) = {n concatenate R(n)}*{ R(n) concatenate n}, where R(n) = digit reversal of n.at n=20A110722
• Number of achiral colorings of the 6 square faces of a cube or the 6 vertices of a regular octahedron using n or fewer colors.at n=19A337898
• Irregular triangle read by rows: T(n, k) is the q-multinomial coefficient defined by the k-th partition of n in Abramowitz-Stegun order, evaluated at q = 3.at n=23A347486