T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.

A188311

T(n,k)=Number of (n+1)X(k+1) binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums.

Terms

    a(0) =0a(1) =24a(2) =24a(3) =36a(4) =128a(5) =36a(6) =160a(7) =664a(8) =664a(9) =160a(10) =380a(11) =3036a(12) =3784a(13) =3036a(14) =380a(15) =1332a(16) =14832a(17) =30096a(18) =30096a(19) =14832a(20) =1332a(21) =3616a(22) =71888a(23) =203584a(24) =321696a(25) =203584a(26) =71888a(27) =3616a(28) =11828a(29) =348728

External references