Number of nX6 0..1 arrays with every element equal to 0, 1 or 3 horizontally or vertically adjacent elements, with upper left element zero.
A301539
Number of nX6 0..1 arrays with every element equal to 0, 1 or 3 horizontally or vertically adjacent elements, with upper left element zero.
Terms
- a(0) =13a(1) =42a(2) =154a(3) =603a(4) =2417a(5) =10783a(6) =47791a(7) =215362a(8) =990403a(9) =4616134a(10) =21616069a(11) =101719485a(12) =480319135a(13) =2272163307a(14) =10763099175a(15) =51036985495a(16) =242162709431
External references
- oeis: A301539