63640

Appears in sequences

• Number of 2 X 2 matrices having all terms in {-n,...,0,..,n} and positive determinant.at n=8A211148
• Number of nX2 0..2 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..2 order.at n=7A274066
• T(n,k)=Number of nXk 0..2 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..2 order.at n=37A274068
• T(n,k)=Number of nXk 0..2 arrays with no three equal values forming an isosceles triangle, and new values introduced in 0..2 order.at n=43A274068