T(n,k)=Number of (n+4)X(k+4) 0..2 matrices with each 5X5 subblock idempotent.

Terms

a(0) =54182a(1) =20465a(2) =20465a(3) =23914a(4) =15354a(5) =23914a(6) =32029a(7) =19596a(8) =19596a(9) =32029a(10) =39001a(11) =22081a(12) =24024a(13) =22081a(14) =39001a(15) =43489a(16) =23453a(17) =26624a(18) =26624a(19) =23453a(20) =43489a(21) =54070a(22) =24252a(23) =28058a(24) =29254a(25) =28058a(26) =24252a(27) =54070a(28) =79918a(29) =31702