123202

Appears in sequences

• Central coefficients of number triangle A113582.at n=26A154323
• Triangle read by rows: T(n,k) = 1 + (A022168(n,k) - binomial(n,k))^2.at n=12A174921
• Number of (n+1) X (1+1) 0..1 arrays with no element having a strict majority of its horizontal, vertical, diagonal and antidiagonal neighbors equal to one.at n=11A231799
• Expansion of Product_{k>=1} 1/(1 + (-x)^k/(1 - x)^k).at n=17A307265
• Numbers k such that k-1 is a perfect square and k+1 is prime.at n=30A392249