Triangle read by rows: T(n,k) = (-3)*T(n-1,k-1) + T(n,k-1) with T(2*m,0) = 0 and T(2*m+1,0) = (-2)^m.
A292789
Triangle read by rows: T(n,k) = (-3)*T(n-1,k-1) + T(n,k-1) with T(2*m,0) = 0 and T(2*m+1,0) = (-2)^m.
Terms
- a(0) =0a(1) =1a(2) =1a(3) =0a(4) =-3a(5) =-6a(6) =-2a(7) =-2a(8) =7a(9) =25a(10) =0a(11) =6a(12) =12a(13) =-9a(14) =-84a(15) =4a(16) =4a(17) =-14a(18) =-50a(19) =-23a(20) =229a(21) =0a(22) =-12a(23) =-24a(24) =18a(25) =168a(26) =237a(27) =-450a(28) =-8a(29) =-8
External references
- oeis: A292789