Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2.
A221338
Number of nX2 arrays of occupancy after each element moves to some king-move neighbor, with no 2-loops and with no occupancy greater than 2.
Terms
- a(0) =0a(1) =13a(2) =85a(3) =758a(4) =5736a(5) =44186a(6) =335511a(7) =2551999a(8) =19387680a(9) =147314684a(10) =1119227588a(11) =8503470301a(12) =64605367209a(13) =490840923878
External references
- oeis: A221338