Number of n X 3 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A281464
Number of n X 3 0..1 arrays with no element equal to more than two of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =4a(1) =17a(2) =24a(3) =60a(4) =133a(5) =283a(6) =634a(7) =1419a(8) =3092a(9) =6849a(10) =15213a(11) =33509a(12) =74017a(13) =163898a(14) =361980a(15) =799660a(16) =1768383a(17) =3908128a(18) =8635736a(19) =19089245a(20) =42191413a(21) =93242838a(22) =206088583a(23) =455499706a(24) =1006707139a(25) =2224999897a(26) =4917670483a(27) =10868814633a(28) =24021891696
External references
- oeis: A281464