152180

Appears in sequences

• If n mod 2 = 0 then a(n) = n^4/4 - 2*n^2 + 3*n; otherwise, a(n) = n^4/4 - 2*n^2 + 3*n - 5/4.at n=28A064835
• Number of nX3 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=3A231936
• T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=18A231940
• Number of 4Xn 0..3 arrays with no element less than a strict majority of its horizontal, diagonal and antidiagonal neighbors.at n=2A231943