4884100

Appears in sequences

• a(n) = ((n+1)*(2*n-1))^2.at n=33A123198
• Number of (n+2)X(2+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum equal to the central column sum.at n=1A258562
• T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with no 3x3 subblock diagonal sum equal to the antidiagonal sum or central row sum equal to the central column sum.at n=4A258564
• G.f. A(x) satisfies A(x) = 1 + x^4*(1+x)*A(x)^2.at n=45A366589