Triangle T(n,k) = binomial(n,k+2)-2*binomial(n,k+1)-binomial(n,k) read by rows, 0<=k<=n-2, n>=2.

Terms

a(0) =-4a(1) =-4a(2) =-8a(3) =-3a(4) =-12a(5) =-13a(6) =-1a(7) =-15a(8) =-25a(9) =-19a(10) =2a(11) =-16a(12) =-40a(13) =-44a(14) =-26a(15) =6a(16) =-14a(17) =-56a(18) =-84a(19) =-70a(20) =-34a(21) =11a(22) =-8a(23) =-70a(24) =-140a(25) =-154a(26) =-104a(27) =-43a(28) =17a(29) =3