Number of 3Xn 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
A278282
Number of 3Xn 0..1 arrays with every element both equal and not equal to some elements at offset (-1,-1) (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.
Terms
- a(0) =0a(1) =5a(2) =25a(3) =122a(4) =661a(5) =3723a(6) =20736a(7) =115446a(8) =643201a(9) =3583987a(10) =19968771a(11) =111259772a(12) =619906272a(13) =3453935575a(14) =19244300244a(15) =107223525884a(16) =597417624393
External references
- oeis: A278282