Number of n X 3 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.
A295270
Number of n X 3 0..1 arrays with each 1 horizontally or vertically adjacent to 0, 1 or 4 1s.
Terms
- a(0) =7a(1) =33a(2) =164a(3) =811a(4) =4035a(5) =19997a(6) =99245a(7) =492401a(8) =2443097a(9) =12121712a(10) =60143345a(11) =298407987a(12) =1480586061a(13) =7346099129a(14) =36448521869a(15) =180843564461a(16) =897276298340
External references
- oeis: A295270