183521

Appears in sequences

• 4-dimensional analog of centered polygonal numbers: a(n) = n(n+1)*(n^2+n+4)/12.at n=38A006007
• a(n) = n*(7*n^2-12*n+7)/2.at n=38A226451
• Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of Hamiltonian circuits within parallelograms of size n X k on the triangular lattice.at n=38A339849
• Square array T(n,k), n >= 2, k >= 2, read by antidiagonals, where T(n,k) is the number of Hamiltonian circuits within parallelograms of size n X k on the triangular lattice.at n=42A339849
• Number of Hamiltonian circuits within parallelograms of size 4 X n on the triangular lattice.at n=6A339851
• Number of Hamiltonian circuits within parallelograms of size 8 X n on the triangular lattice.at n=2A339960