57920

Appears in sequences

• Number of nXnXn 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,3,2,1,1,0,0 for x=0,1,2,3,4,5,6.at n=6A198089
• a(n) = Sum_{i=1..floor((n-1)/2)} i * (n-i)^2.at n=31A308038
• a(n) = coefficient of x^n in A(x) such that: 0 = Sum_{n=-oo..+oo} x^(4*n) * (x^n - 2*A(x))^(5*n+1).at n=5A358954
• Number of L-connected free polyominoes with n cells (see comments for definition).at n=22A360055