477204025

Appears in sequences

• First differences of A138477.at n=31A138495
• Squares of Jacobsthal numbers.at n=16A139818
• Number of n X 3 arrays with every diagonal and antidiagonal of length L containing a permutation of 1..L.at n=29A179808
• a(n) = A112387(n)^2.at n=31A374098
• a(n) = A135318(n)^2.at n=30A374927