Number of n X 3 0..2 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly one element, and with new values introduced in order 0 sequentially upwards.
A281321
Number of n X 3 0..2 arrays with no element equal to more than one 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) =1a(1) =46a(2) =1266a(3) =27144a(4) =521848a(5) =9439296a(6) =164206368a(7) =2780073856a(8) =46137121152a(9) =754039756800
External references
- oeis: A281321