Number of free mature snake polyominoes of n cells, where mature means that the snake cannot grow in either direction.
A359521
Number of free mature snake polyominoes of n cells, where mature means that the snake cannot grow in either direction.
Terms
- a(0) =4a(1) =0a(2) =26a(3) =0a(4) =194a(5) =17a(6) =1086a(7) =152a(8) =6140a(9) =1006a(10) =32713a(11) =6335a(12) =172379a(13) =38800
External references
- oeis: A359521