Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A281601
Number of nX4 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =11a(1) =110a(2) =1283a(3) =16198a(4) =203276a(5) =2563481a(6) =32354824a(7) =408458506a(8) =5156857179a(9) =65107404580a(10) =822011501060
External references
- oeis: A281601