Number of 5 X n 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.
A274897
Number of 5 X n 0..2 arrays with no element equal to any value at offset (0,-1) (-1,-1) or (-2,0) and new values introduced in order 0..2.
Terms
- a(0) =12a(1) =26a(2) =84a(3) =275a(4) =913a(5) =3064a(6) =10337a(7) =34921a(8) =117975a(9) =398560a(10) =1346637a(11) =4550382a(12) =15376372a(13) =51958316a(14) =175571071a(15) =593268299a(16) =2004704682a(17) =6774075554a(18) =22890197334a(19) =77347965186a(20) =261365481435a(21) =883176688023
External references
- oeis: A274897