Number of nX4 0..1 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
A223008
Number of nX4 0..1 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order.
Terms
- a(0) =4a(1) =18a(2) =117a(3) =840a(4) =6240a(5) =47139a(6) =360347a(7) =2779528a(8) =21588898a(9) =168613534a(10) =1322868729a(11) =10417760419a(12) =82302522544a(13) =651981307285
External references
- oeis: A223008