Cage order $n(4,5)$
Koko90, via Wikimedia Commons. CC BY-SA 3.0.
The order of a $(4,5)$-cage, a $4$-regular graph of girth $5$ of minimum order.
Value: $19$
Updates
-
Upper bound: $19$
Reference unknown
[via Dynamic Cage Survey, Geoffrey Exoo and Robert Jajcay, 2013-07-26] -
Lower bound: $19$
Reference unknown
[via Dynamic Cage Survey, Geoffrey Exoo and Robert Jajcay, 2013-07-26]