Number of 2 X n 0..2 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order.
A241371
Number of 2 X n 0..2 arrays with no element equal to fewer vertical neighbors than horizontal neighbors, with new values 0..2 introduced in row major order.
Terms
- a(0) =2a(1) =7a(2) =28a(3) =121a(4) =523a(5) =2261a(6) =9775a(7) =42261a(8) =182711a(9) =789933a(10) =3415199a(11) =14765285a(12) =63836295a(13) =275990109a(14) =1193216815a(15) =5158758677a(16) =22303399319a(17) =96426611981a(18) =416891226559
External references
- oeis: A241371