101912

Appears in sequences

• Number of 2 X 2 matrices with all elements in {0,1,...,n} and determinant >= 2n.at n=22A210367
• Triangle read by rows: Kreweras's "Rule A_4 left thickness" numbers.at n=47A259099
• Number of nX5 0..1 arrays with every element unequal to 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=5A305506
• Number of nX6 0..1 arrays with every element unequal to 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=4A305507
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=49A305509
• T(n,k)=Number of nXk 0..1 arrays with every element unequal to 2, 3, 4, 6 or 8 king-move adjacent elements, with upper left element zero.at n=50A305509