46612

Appears in sequences

• Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any horizontal, diagonal or antidiagonal neighbor, and containing the value n(n+1)/2-3.at n=6A212022
• T(n,k)=Number of lower triangular n X n arrays colored with integers 0 upwards introduced in row major order, with no element equal to any horizontal, diagonal or antidiagonal neighbor, and containing the value n(n+1)/2-k-1.at n=34A212026
• G.f. satisfies: A(x - A(x) + A(x)^2) = x^4.at n=11A291190