Number of unsensed 4-regular maps with 2*n edges on the Klein bottle.
A348766
Number of unsensed 4-regular maps with 2*n edges on the Klein bottle.
Terms
- a(0) =2a(1) =17a(2) =182a(3) =2480a(4) =39386a(5) =683425a(6) =12420653a(7) =231663025a(8) =4389204048a(9) =8404711549
External references
- oeis: A348766