Number of 5 X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
A208070
Number of 5 X n 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 0 1 1 vertically.
Terms
- a(0) =12a(1) =144a(2) =216a(3) =1008a(4) =3696a(5) =12960a(6) =48840a(7) =179520a(8) =657000a(9) =2423280a(10) =8913456a(11) =32769360a(12) =120581784a(13) =443565696a(14) =1631571912a(15) =6002079552a(16) =22079078352a(17) =81218792016a(18) =298770650040
External references
- oeis: A208070