T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j).
A230184
T(n,k)=Number of nXk 0..2 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value 2-x(i,j).
Terms
- a(0) =0a(1) =3a(2) =0a(3) =3a(4) =9a(5) =0a(6) =9a(7) =27a(8) =33a(9) =0a(10) =15a(11) =159a(12) =231a(13) =129a(14) =0a(15) =33a(16) =825a(17) =3411a(18) =1971a(19) =513a(20) =0a(21) =63a(22) =4395a(23) =44487a(24) =73857a(25) =16815a(26) =2049a(27) =0a(28) =129a(29) =23307
External references
- oeis: A230184