Number of (4+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.

A253701

Number of (4+1)X(n+1) 0..1 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically.

Terms

    a(0) =264a(1) =304a(2) =480a(3) =700a(4) =992a(5) =1262a(6) =1790a(7) =2538a(8) =4020a(9) =5990a(10) =8836a(11) =12394a(12) =17968a(13) =26012a(14) =38598a(15) =56584a(16) =83518a(17) =120602a(18) =175720a(19) =255184a(20) =375296a(21) =547746a(22) =802690a(23) =1169748a(24) =1708828a(25) =2488792a(26) =3641134a(27) =5318124a(28) =7778660a(29) =11346426

External references