Number of n X 3 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
A281339
Number of n X 3 0..1 arrays with no element equal to more than three of its king-move neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =4a(1) =25a(2) =68a(3) =193a(4) =544a(5) =1539a(6) =4355a(7) =12332a(8) =34907a(9) =98797a(10) =279622a(11) =791433a(12) =2240071a(13) =6340292a(14) =17945485a(15) =50792619a(16) =143762646a(17) =406903731a(18) =1151694633a(19) =3259740340a(20) =9226322979a(21) =26114053785a(22) =73912847850a(23) =209201878257a(24) =592122035615
External references
- oeis: A281339