T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.

A187283

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 2X2 subblock sum equal to some diagonal or antidiagonal neighbor 2X2 subblock sum.

Terms

    a(0) =711a(1) =859a(2) =859a(3) =20529a(4) =5385a(5) =20529a(6) =79499a(7) =71745a(8) =71745a(9) =79499a(10) =868277a(11) =704041a(12) =3995709a(13) =704041a(14) =868277a(15) =5031413a(16) =8256093a(17) =67503191a(18) =67503191a(19) =8256093a(20) =5031413a(21) =43307435a(22) =90158141a(23) =1974830613

External references