Number of nX2 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A280392
Number of nX2 0..2 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =0a(1) =2a(2) =14a(3) =74a(4) =358a(5) =1666a(6) =7582a(7) =33978a(8) =150486a(9) =660210a(10) =2873870a(11) =12427562a(12) =53438534a(13) =228667234a(14) =974321278a(15) =4135894426a(16) =17498014902a(17) =73809808338a(18) =310510228206
External references
- oeis: A280392