Number of sensed simple planar maps with n edges and without vertices of degree 1.
A006400
Number of sensed simple planar maps with n edges and without vertices of degree 1.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =1a(5) =2a(6) =5a(7) =11a(8) =33a(9) =117a(10) =431a(11) =1755a(12) =7485
External references
- oeis: A006400