131218206

Appears in sequences

• T(n,k)=Number of nXk arrays containing k copies of 0..n-1 with every element equal to at least one horizontal or antidiagonal neighbor and the top left element equal to 0.at n=48A267617
• Number of 4Xn arrays containing n copies of 0..4-1 with every element equal to at least one horizontal or antidiagonal neighbor and the top left element equal to 0.at n=6A267620