T(n,k)=S(n,k,k-3), 2<=k<=n-3, n >= 5, array S as in A050157.

Terms

a(0) =2a(1) =5a(2) =5a(3) =9a(4) =14a(5) =14a(6) =14a(7) =28a(8) =42a(9) =28a(10) =20a(11) =48a(12) =90a(13) =90a(14) =48a(15) =27a(16) =75a(17) =165a(18) =207a(19) =165a(20) =75a(21) =35a(22) =110a(23) =275a(24) =407a(25) =407a(26) =275a(27) =110a(28) =44a(29) =154