T(n,k)=Number of nXk 0..3 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope.

A222931

T(n,k)=Number of nXk 0..3 arrays with successive rows and columns fitting to straight lines with strictly increasing slope, with a single point array taken as having zero slope.

Terms

    a(0) =4a(1) =0a(2) =0a(3) =0a(4) =106a(5) =0a(6) =0a(7) =376a(8) =376a(9) =0a(10) =0a(11) =769a(12) =10896a(13) =769a(14) =0a(15) =0a(16) =904a(17) =142442a(18) =142442a(19) =904a(20) =0a(21) =0a(22) =564a(23) =772576a(24) =26220153a(25) =772576a(26) =564a(27) =0a(28) =0a(29) =144

External references