Number of tree polyominoes with width 4 and height n.
A348707
Number of tree polyominoes with width 4 and height n.
Terms
- a(0) =1a(1) =22a(2) =243a(3) =2024a(4) =14981a(5) =104946a(6) =716045a(7) =4816620a(8) =32149313a(9) =213645182a(10) =1416316877a(11) =9376424198a(12) =62027820325a(13) =410158517056
External references
- oeis: A348707