24491

when you make a row of 3 it gives you 3 points, however if you have only one plug in at a time then then it'll equal 0. This means you can make 0 by keeping all the plugs so that they aren't in a row of 3 (including diagonal) you can also make 40 by putting all the numbers in as many rows as you can.The easiest way to make one is to have a large rectangle then add on the last plug into a diagonal line. this is the easiest way to make 40 in the "spot thirteen" problem.