T(n,k)=Number of (n+3)X(k+3) 0..2 matrices with each 4X4 subblock idempotent.

Terms

a(0) =2052a(1) =1623a(2) =1623a(3) =2471a(4) =1920a(5) =2471a(6) =3506a(7) =2493a(8) =2493a(9) =3506a(10) =4257a(11) =2863a(12) =3092a(13) =2863a(14) =4257a(15) =5737a(16) =3123a(17) =3502a(18) =3502a(19) =3123a(20) =5737a(21) =8117a(22) =4129a(23) =3775a(24) =3924a(25) =3775a(26) =4129a(27) =8117a(28) =12306a(29) =5711