Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.
A276249
Number of 3 X n 0..2 arrays with no element equal to any value at offset (-2,-1) (-1,1) or (0,-2) and new values introduced in order 0..2.
Terms
- a(0) =5a(1) =36a(2) =85a(3) =279a(4) =900a(5) =2837a(6) =9148a(7) =29570a(8) =95102a(9) =306540a(10) =989092a(11) =3188130a(12) =10278456a(13) =33146672a(14) =106872610a(15) =344585885a(16) =1111106822a(17) =3582609009a(18) =11551580944a(19) =37246820838a(20) =120097695423a(21) =387239261828
External references
- oeis: A276249