T(n,k)=Number of nXk 0..6 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(k+1) 0..2 array.

A229437

T(n,k)=Number of nXk 0..6 arrays of the sum of the corresponding element, the element to the east and the element to the south in a larger (n+1)X(k+1) 0..2 array.

Terms

    a(0) =7a(1) =43a(2) =43a(3) =259a(4) =1213a(5) =259a(6) =1555a(7) =31111a(8) =31111a(9) =1555a(10) =9331a(11) =775213a(12) =2985887a(13) =775213a(14) =9331a(15) =55987a(16) =19122559a(17) =262875231a(18) =262875231a(19) =19122559a(20) =55987a(21) =335923a(22) =469959685a(23) =22257074415a(24) =74760946845a(25) =22257074415a(26) =469959685a(27) =335923a(28) =2015539

External references