T(n,n-4), array T as in A038792.

Terms

a(0) =1a(1) =5a(2) =12a(3) =21a(4) =34a(5) =55a(6) =88a(7) =138a(8) =211a(9) =314a(10) =455a(11) =643a(12) =888a(13) =1201a(14) =1594a(15) =2080a(16) =2673a(17) =3388a(18) =4241a(19) =5249a(20) =6430a(21) =7803a(22) =9388a(23) =11206a(24) =13279a(25) =15630a(26) =18283a(27) =21263a(28) =24596a(29) =28309