Number of nX4 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A279853
Number of nX4 0..2 arrays with no element unequal to a strict majority of its horizontal and vertical neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =2a(1) =24a(2) =168a(3) =972a(4) =5200a(5) =26632a(6) =134898a(7) =668668a(8) =3278294a(9) =15902088a(10) =76515244a(11) =365585432a(12) =1736575416a(13) =8206953072a(14) =38615236370a(15) =180986296644a(16) =845359203352
External references
- oeis: A279853