a(n) is the number of free polyominoids that have faces aligned to precisely 2 planes.
A385399
a(n) is the number of free polyominoids that have faces aligned to precisely 2 planes.
Terms
- a(0) =0a(1) =1a(2) =5a(3) =33a(4) =197a(5) =1461a(6) =11278a(7) =93486a(8) =799261
External references
- oeis: A385399