Numbers of apex graphs (graphs which become or remain planar upon the removal of a single vertex) on n vertices.
A215620
Numbers of apex graphs (graphs which become or remain planar upon the removal of a single vertex) on n vertices.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =11a(4) =34a(5) =155a(6) =1026a(7) =11666a(8) =226916a(9) =6810525
External references
- oeis: A215620