543906domain: NAppears in sequencesNumber of nX4 0..3 arrays with no three equal values forming an isosceles right triangle, and new values introduced in 0..3 order.at n=3A273963T(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=24A273964