Number of fixed polyominoes with 2n cells.
A210986
Number of fixed polyominoes with 2n cells.
Terms
- a(0) =2a(1) =19a(2) =216a(3) =2725a(4) =36446a(5) =505861a(6) =7204874a(7) =104592937a(8) =1540820542a(9) =22964779660a(10) =345532572678
External references
- oeis: A210986