Number of osculating polygons of perimeter 2n on square lattice.
A121345
Number of osculating polygons of perimeter 2n on square lattice.
Terms
- a(0) =0a(1) =1a(2) =2a(3) =9a(4) =36a(5) =170a(6) =832a(7) =4318a(8) =23164a(9) =128141a(10) =725806a(11) =4194923a(12) =24657628a(13) =147053105a(14) =888044678a(15) =5421873743a(16) =33423442196a(17) =207811667858
External references
- oeis: A121345