Application of YuckFoo's and my strategies gets us 134. There is an ever so slight change in the output due to the fudge factor introduced by YuckFoo's test change, switch back to the ()+() for 136 and no change in output.

perl -l

map{$i=$_/20-1;print map{$r=$j=$_/20-2.3;$z=$i;$b=$";map{$b='+'if
$m=$r*$r,($n=$z*$z)>4;$z=2*$r*$z+$i;$r=$m-$n+$j}a..z;$b}0..59}0..39
[download]

--
perl -pew "s/\b;([mnst])/'$1/g"