123680

Appears in sequences

• Number of reversible string structures with n beads using exactly five different colors.at n=10A056329
• Number of primitive (aperiodic) reversible string structures with n beads using exactly five different colors.at n=10A056339
• Triangle with first column identical to 1 and the other entries defined by the sum of entries above and to the left.at n=51A226392
• Expansion of g.f. A(x) satisfying A(A(x)) - 4*A(A(A(x)))^2 = x.at n=5A373314