T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors and with new values introduced in order 0 sequentially upwards.
A280362
T(n,k)=Number of nXk 0..2 arrays with no element equal to more than one of its horizontal and vertical neighbors and with new values introduced in order 0 sequentially upwards.
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =9a(5) =4a(6) =11a(7) =50a(8) =50a(9) =11a(10) =30a(11) =285a(12) =571a(13) =285a(14) =30a(15) =82a(16) =1617a(17) =6727a(18) =6727a(19) =1617a(20) =82a(21) =224a(22) =9188a(23) =78800a(24) =164326a(25) =78800a(26) =9188a(27) =224a(28) =612a(29) =52193
External references
- oeis: A280362