Cage order $n(15,12)$
The order of a $(15,12)$-cage, a $15$-regular graph of girth $12$ of minimum order.
Lower bound:
Unknown
Upper bound:
$1957376$
(1,957,376)
Updates
-
Upper bound: $1957376$
(1,957,376)
Reference unknown
[via Dynamic Cage Survey, Geoffrey Exoo and Robert Jajcay, 2013-07-26]