Number of nX3 0..1 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
A231539
Number of nX3 0..1 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
Terms
- a(0) =4a(1) =20a(2) =116a(3) =589a(4) =3001a(5) =15644a(6) =81179a(7) =420243a(8) =2177937a(9) =11287977a(10) =58494710a(11) =303132340a(12) =1570918959a(13) =8140881877a(14) =42188034539a(15) =218628945511
External references
- oeis: A231539