A221333
Number of 6Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Original entry on oeis.org
1, 19601, 9637322, 7010554450, 4205264399891, 2568131772343102, 1529318909534974055, 908027872393164105009
Offset: 1
Some solutions for n=3
..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0
..1..2..0....1..2..2....1..2..0....2..1..0....1..2..1....2..1..0....2..1..0
..2..1..0....1..1..1....2..2..1....2..1..1....0..2..2....1..2..1....2..1..1
..2..1..2....1..2..0....1..1..2....0..2..2....1..1..2....2..2..1....2..2..0
..1..1..0....2..0..2....0..0..1....2..0..2....0..0..1....1..2..1....1..0..2
..2..1..1....1..0..1....2..1..1....1..0..1....2..2..0....0..1..0....1..0..2
A221334
Number of 7Xn arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor, with no occupancy greater than 2.
Original entry on oeis.org
1, 114243, 162555929, 374176705928, 676612123702617, 1252783082725664892, 2242286238164144345340, 3997304037038003330432187
Offset: 1
Some solutions for n=3
..0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0....0..1..0
..1..2..0....1..2..0....1..2..0....1..2..0....1..2..0....1..2..0....1..2..0
..1..2..0....2..1..1....2..1..0....1..2..0....2..1..1....2..1..1....1..2..1
..2..2..0....0..2..1....2..2..2....1..2..2....0..2..1....1..1..1....2..1..0
..2..1..0....0..2..1....0..1..2....0..1..2....2..0..0....2..0..1....0..2..0
..2..2..0....1..1..2....0..1..0....0..1..1....2..1..2....1..1..1....1..2..2
..1..2..0....1..0..2....1..2..1....1..1..2....2..0..1....2..2..0....0..1..2
Comments