Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A223006
Number of nX2 0..1 arrays with no more than floor(nX2/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =1a(1) =4a(2) =10a(3) =34a(4) =101a(5) =331a(6) =1044a(7) =3406a(8) =11008a(9) =36039a(10) =117866a(11) =387709a(12) =1276783a(13) =4217763a(14) =13954040a(15) =46258390a(16) =153562565a(17) =510523621a(18) =1699272620a(19) =5662498639a(20) =18888082230a(21) =63062936820a(22) =210730527620a(23) =704727803329
External references
- oeis: A223006