Number of 4Xn 0..2 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A222576
Number of 4Xn 0..2 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =14a(1) =18a(2) =120a(3) =435a(4) =3516a(5) =25441a(6) =212957a(7) =1933819a(8) =17971162a(9) =172292518a(10) =1649722196a(11) =15907967878a(12) =153952727468
External references
- oeis: A222576