Number of nX4 0..3 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
A222518
Number of nX4 0..3 arrays with exactly floor(nX4/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =3a(1) =9a(2) =37a(3) =206a(4) =1111a(5) =26513a(6) =221659a(7) =6043652a(8) =56070649a(9) =1573702327a(10) =14644968953a(11) =408818223648
External references
- oeis: A222518