T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically.
A207661
T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 1 1 1 horizontally and 0 0 1 and 1 0 0 vertically.
Terms
- a(0) =2a(1) =4a(2) =4a(3) =6a(4) =16a(5) =6a(6) =10a(7) =36a(8) =36a(9) =9a(10) =16a(11) =100a(12) =84a(13) =81a(14) =14a(15) =26a(16) =256a(17) =292a(18) =198a(19) =196a(20) =22a(21) =42a(22) =676a(23) =912a(24) =870a(25) =474a(26) =484a(27) =35a(28) =68a(29) =1764
External references
- oeis: A207661