Number of free (2-sided) ouroboros polyominoes with k=2n cells.
A359706
Number of free (2-sided) ouroboros polyominoes with k=2n cells.
Terms
- a(0) =0a(1) =1a(2) =0a(3) =1a(4) =1a(5) =4a(6) =7a(7) =31a(8) =95a(9) =420a(10) =1682a(11) =7544a(12) =33288a(13) =152022a(14) =696096a(15) =3231001
External references
- oeis: A359706