Number of free rooted (or pointed) polyiamonds with n cells.
A369365
Number of free rooted (or pointed) polyiamonds with n cells.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =6a(4) =16a(5) =50a(6) =150a(7) =458a(8) =1388a(9) =4233a(10) =12875a(11) =39227a(12) =119456a(13) =363868a(14) =1107912a(15) =3372793a(16) =10264156a(17) =31228969
External references
- oeis: A369365