T(n,n-5), array T as in A038738.

Terms

a(0) =1a(1) =13a(2) =93a(3) =486a(4) =2080a(5) =7756a(6) =26193a(7) =82263a(8) =244906a(9) =701075a(10) =1950697a(11) =5318976a(12) =14300161a(13) =38078927a(14) =100753810a(15) =265490007a(16) =697759186a(17) =1830912101a(18) =4799663942a(19) =12574986625a(20) =32935310938a(21) =86245253339a(22) =225820609154