T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
A281605
T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal, diagonal or antidiagonal neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =9a(5) =5a(6) =11a(7) =29a(8) =50a(9) =14a(10) =30a(11) =110a(12) =209a(13) =285a(14) =41a(15) =82a(16) =442a(17) =1283a(18) =1623a(19) =1617a(20) =122a(21) =224a(22) =1708a(23) =8180a(24) =16198a(25) =12413a(26) =9188a(27) =365a(28) =612a(29) =6596
External references
- oeis: A281605