196811

Appears in sequences

• Number of zero-sum nX2 -2..2 arrays with every element equal to at least one horizontal or vertical neighbor.at n=6A201885
• T(n,k)=Number of zero-sum nXk -2..2 arrays with every element equal to at least one horizontal or vertical neighbor.at n=29A201888
• T(n,k)=Number of zero-sum nXk -2..2 arrays with every element equal to at least one horizontal or vertical neighbor.at n=34A201888
• Composite numbers n such that b^(n+1) == 1 (mod n) for every b coprime to n.at n=30A208728