Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.

A229367

Number of nX3 0..2 arrays avoiding 11 horizontally, 22 vertically and 00 antidiagonally.

Terms

    a(0) =22a(1) =184a(2) =1610a(3) =13937a(4) =122497a(5) =1067299a(6) =9346997a(7) =81633583a(8) =713982837a(9) =6240061504a(10) =54556988152a(11) =476904755485

External references