Number of (n+1) X 2 binary arrays with rows and columns in nondecreasing order and with no 2 X 2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.

A184063

Number of (n+1) X 2 binary arrays with rows and columns in nondecreasing order and with no 2 X 2 subblock sum differing from a horizontal or vertical neighbor subblock sum by more than one.

Terms

    a(0) =7a(1) =11a(2) =20a(3) =34a(4) =54a(5) =81a(6) =116a(7) =160a(8) =214a(9) =279a(10) =356a(11) =446a(12) =550a(13) =669a(14) =804a(15) =956a(16) =1126a(17) =1315a(18) =1524a(19) =1754a(20) =2006a(21) =2281a(22) =2580a(23) =2904a(24) =3254a(25) =3631a(26) =4036a(27) =4470a(28) =4934a(29) =5429

External references