Triangle read by rows: T(0,0) = 1; T(n,k) = 2*T(n-1,k) - T(n-3,k-1) for k = 0..floor(n/3); T(n,k)=0 for n or k < 0.

A317504

Triangle read by rows: T(0,0) = 1; T(n,k) = 2*T(n-1,k) - T(n-3,k-1) for k = 0..floor(n/3); T(n,k)=0 for n or k < 0.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =8a(4) =-1a(5) =16a(6) =-4a(7) =32a(8) =-12a(9) =64a(10) =-32a(11) =1a(12) =128a(13) =-80a(14) =6a(15) =256a(16) =-192a(17) =24a(18) =512a(19) =-448a(20) =80a(21) =-1a(22) =1024a(23) =-1024a(24) =240a(25) =-8a(26) =2048a(27) =-2304a(28) =672a(29) =-40

External references