8479744

Appears in sequences

• Triangle read by rows, characteristic polynomials of matrices; (n X n bisymmetric matrices in which both diagonals equal the (n-1)-th row of Pascal's triangle with the rest zeros). (n>=0, 0<=k<=ceiling(n/2)).at n=33A140693
• Number of nX4 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.at n=6A203538
• Number of nX7 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.at n=3A203541
• T(n,k)=Number of nXk 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.at n=48A203542
• T(n,k)=Number of nXk 0..2 arrays with every element neighboring horizontally or vertically both a 0 and a 1.at n=51A203542
• Number of n X 6 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.at n=27A208067