Number of nX2 0..3 arrays with no more than floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
A222473
Number of nX2 0..3 arrays with no more than floor(nX2/2) elements unequal to at least one king-move neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =10a(4) =11a(5) =126a(6) =139a(7) =2033a(8) =2229a(9) =36255a(10) =39685a(11) =667198a(12) =729937a(13) =12434879a(14) =13604769a(15) =233248961a(16) =255262081a(17) =4393917596a(18) =4810289617a(19) =83052210509a(20) =90956522613
External references
- oeis: A222473