Number of nX2 0..2 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
A279921
Number of nX2 0..2 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =1a(1) =0a(2) =15a(3) =142a(4) =1350a(5) =12858a(6) =119396a(7) =1095012a(8) =9924024a(9) =89076240a(10) =792954264a(11) =7008783648a(12) =61565762448a(13) =537846507200
External references
- oeis: A279921