Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.

A255224

Number of (n+2)X(4+2) 0..1 arrays with no 3x3 subblock diagonal sum 0 and no antidiagonal sum 0 and no row sum 2 and no column sum 2.

Terms

    a(0) =43a(1) =49a(2) =58a(3) =70a(4) =88a(5) =115a(6) =154a(7) =211a(8) =295a(9) =418a(10) =598a(11) =862a(12) =1249a(13) =1816a(14) =2647a(15) =3865a(16) =5650a(17) =8266a(18) =12100a(19) =17719a(20) =25954a(21) =38023a(22) =55711a(23) =81634a(24) =119626a(25) =175306a(26) =256909a(27) =376504a(28) =551779a(29) =808657

External references