T(n,k)=Number of (n+1)X(k+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others.

A183845

T(n,k)=Number of (n+1)X(k+1) binary arrays with each element of every 2X2 subblock being the sum mod 2 of two others.

Terms

    a(0) =11a(1) =31a(2) =31a(3) =88a(4) =129a(5) =88a(6) =251a(7) =542a(8) =542a(9) =251a(10) =717a(11) =2297a(12) =3357a(13) =2297a(14) =717a(15) =2050a(16) =9747a(17) =21068a(18) =21068a(19) =9747a(20) =2050a(21) =5863a(22) =41430a(23) =132152a(24) =197133a(25) =132152a(26) =41430a(27) =5863a(28) =16771a(29) =176119

External references