T(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.

A273964

T(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.

Terms

    a(0) =1a(1) =2a(2) =2a(3) =5a(4) =10a(5) =5a(6) =15a(7) =105a(8) =105a(9) =15a(10) =51a(11) =1264a(12) =2766a(13) =1264a(14) =51a(15) =187a(16) =15418a(17) =49702a(18) =49702a(19) =15418a(20) =187a(21) =715a(22) =188465a(23) =784878a(24) =543906a(25) =784878a(26) =188465a(27) =715a(28) =2795a(29) =2304141

External references