Number of nX3 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s.
A295526
Number of nX3 0..1 arrays with each 1 horizontally or vertically adjacent to 1, 2 or 4 1s.
Terms
- a(0) =4a(1) =29a(2) =147a(3) =774a(4) =4080a(5) =21489a(6) =113466a(7) =598374a(8) =3155426a(9) =16642084a(10) =87770692a(11) =462903372a(12) =2441353234a(13) =12875695490a(14) =67906455891a(15) =358138834199
External references
- oeis: A295526