Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A222451
Number of nX3 0..1 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =0a(1) =2a(2) =2a(3) =17a(4) =27a(5) =194a(6) =467a(7) =2375a(8) =6320a(9) =31706a(10) =84949a(11) =426134a(12) =1133626a(13) =5776492a(14) =15176513a(15) =78547862a(16) =204559282a(17) =1071259196a(18) =2775207035a(19) =14655072445a(20) =37875592694a(21) =201114091282a(22) =519500141148
External references
- oeis: A222451