28171070domain: NAppears in sequencesNumber of nX2 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=7A273961T(n,k)=Number of nXk 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=37A273964