T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal and vertical neighbors.
A231746
T(n,k)=Number of nXk 0..3 arrays with no element less than a strict majority of its horizontal and vertical neighbors.
Terms
- a(0) =4a(1) =4a(2) =4a(3) =16a(4) =84a(5) =16a(6) =50a(7) =318a(8) =318a(9) =50a(10) =144a(11) =1328a(12) =4430a(13) =1328a(14) =144a(15) =422a(16) =6064a(17) =60806a(18) =60806a(19) =6064a(20) =422a(21) =1268a(22) =26918a(23) =784076a(24) =2154900a(25) =784076a(26) =26918a(27) =1268a(28) =3823a(29) =116909
External references
- oeis: A231746