Number of nX3 0..3 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222674
Number of nX3 0..3 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =1a(1) =5a(2) =11a(3) =130a(4) =670a(5) =9587a(6) =51055a(7) =832433a(8) =4403793a(9) =76270010a(10) =393405671a(11) =7110030015a(12) =35866532209a(13) =668872050090
External references
- oeis: A222674