Number of 4Xn 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.
A280402
Number of 4Xn 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) =74a(2) =554a(3) =3002a(4) =15476a(5) =78540a(6) =388686a(7) =1909332a(8) =9276316a(9) =44749702a(10) =214274388a(11) =1020029010a(12) =4829443432a(13) =22761611592a(14) =106838241882a(15) =499686947334
External references
- oeis: A280402