Cage order $n(20,12)$
The order of a $(20,12)$-cage, a $20$-regular graph of girth $12$ of minimum order.
Lower bound:
Unknown
Upper bound:
$5227320$
(5,227,320)
Updates
-
Upper bound: $5227320$
(5,227,320)
Reference unknown
[via Dynamic Cage Survey, Geoffrey Exoo and Robert Jajcay, 2013-07-26]