Number of n X 5 0..2 arrays with no element equal to any value at offset (-1,0) (0,-1) or (-2,-2) and new values introduced in order 0..2.
A274855
Number of n X 5 0..2 arrays with no element equal to any value at offset (-1,0) (0,-1) or (-2,-2) and new values introduced in order 0..2.
Terms
- a(0) =8a(1) =81a(2) =100a(3) =330a(4) =1085a(5) =3602a(6) =12102a(7) =40901a(8) =138307a(9) =467309a(10) =1578541a(11) =5333233a(12) =18021770a(13) =60899601a(14) =205786949a(15) =695366607a(16) =2349691060a(17) =7939809084a(18) =26829343060a(19) =90658737265a(20) =306343718596
External references
- oeis: A274855