Mazes. & Coprime Grids

[Giovanni Resta]

Leroy Quet wrote:

> Regarding coprime-grid question.
> 
> We could also ask about grids with toroidal topology.
> (Elements at top row must be coprime to respective elements in bottom 
> row; elements in left column must also be coprime to respective elements 
> in right column.)

If I have time I'll give them a try.
In the meantime I've calculated some other entry of the
previous table, namely:

(2,8)=(8,2)  =     34069248
(2,9)=(9,2)  =   1002931200
(2,10)=(10,2)=  80992327680
(3,6)=(6,3)  =    592220160
(3,7)=(7,3)  = 551642572800
(4,5)=(5,4)  =  39779389440

bye,
giovanni