Number of nX3 0..2 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.
A222426
Number of nX3 0..2 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =0a(1) =4a(2) =4a(3) =75a(4) =298a(5) =3256a(6) =12442a(7) =142378a(8) =538894a(9) =6301728a(10) =23842008a(11) =282114008a(12) =1069422214a(13) =12748422020a(14) =48447493914a(15) =580528933846
External references
- oeis: A222426