Ex(n;5)

The following table is the key to the colors in the table presented above:

In addition to the values shown in the table above, large graphs, constructed by researches interested in The Cage Problem, provide good constructive lower bounds for the extremal number. For example: ex(42;5)=105, ex(62;5)=186, ex(90;5)=315,ex(114;5)=456, ex(146;5)=657, ex(182;5)=910, exl(240;5)=1320, ex(266;5)=1596, exl(336;5)=2184, ex(366;5)=2562, exl(462;5)=3465, exl(504;5)=4032, ex(546;5)=4641, ex(614;5)=5526, exl(720;5)=6840 and ex(762;5)=7620.