Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
A304414
Number of nX3 0..1 arrays with every element unequal to 0, 2, 3, 4 or 5 king-move adjacent elements, with upper left element zero.
Terms
- a(0) =1a(1) =8a(2) =23a(3) =103a(4) =520a(5) =2671a(6) =13876a(7) =72399a(8) =378321a(9) =1979531a(10) =10361881a(11) =54254622a(12) =284118654a(13) =1487964150a(14) =7792975441a(15) =40815315514a(16) =213770499606
External references
- oeis: A304414