From the source code at http://www.greywethers.net/index2.html which redirects to the "equation" pages,
Here is the order in which the pages are defined for the random selector:
  • (A+F):
  • (J+V):
  • (N+Y):
  • (P+S):
  • (H+R):
  • (B+M):
  • (C+D):
  • (G+Z):
  • (O+T):
  • (E+U):
  • (I+K):
  • (L+Q):
  • (W+X):
 
  • page[0]="http://www.greywethers.net/1+6.html";
  • page[1]="http://www.greywethers.net/10+22.html";
  • page[2]="http://www.greywethers.net/14+25.html";
  • page[3]="http://www.greywethers.net/16+19.html";
  • page[4]="http://www.greywethers.net/8+18.html";
  • page[5]="http://www.greywethers.net/2+13.html";
  • page[6]="http://www.greywethers.net/3+4.html";
  • page[7]="http://www.greywethers.net/7+26.html";
  • page[8]="http://www.greywethers.net/15+20.html"; (has 3 equations)
  • page[9]="http://www.greywethers.net/5+21.html"; (has 3 equations)
  • page[10]="http://www.greywethers.net/9+11.html"; (has 3 equations)
  • page[11]="http://www.greywethers.net/12+17.html"; (has 3 equations)
  • page[12]="http://www.greywethers.net/23+24.html"; (has 4 equations)
(The specific letter pairs are not a known solve, but the URLs do relate to the alphabet somehow.)

And below are the pages in ascending URL order:

1+6.html
( A F )
   1
   3
+ 2
+ 7
+ 6
   10
10
[top of page]

2+13.html
( B M )
   2
   1
+ 2
+ 1
   4
   2
[top of page]

3+4.html
( C D )
   5
   4
+ 0
+ 1
   5
   5
[top of page]

5+21.html
( E U )
   
   4
   1
  
   3
+ 3
+ 1
  
+ 1
 
   7
   2
  
   4
[top of page]

7+26.html
( G Z )
   3
   0
+ 1
+ 1
   4
   1
[top of page]

8+18.html
( H R )
   9
   1
+ 2
+ 4
  11
   5
[top of page]

9+11.html
( I K )
   
   1
   2
  
   3
+ 2
+ 1
  
+ 1
 
   3
   3
  
   4
[top of page]

10+22.html
( J V )
   4
   1
+ 1
+ 6
  5
   7
[top of page]

12+17.html
( L Q )
   
   2
   3
  
   1
+ 2
+ 2
  
+ 6
 
   4
   5
  
   7
[top of page]

14+25.html
( N Y )
   1
   0
+ 7
+ 4
  8
   4
[top of page]

15+20.html
( O T )
   
   2
   0
  
   1
+ 2
+ 5
  
+5
 
   4
   5
  
   6
[top of page]

16+19.html
( P S )
   1
   2
+ 7
+ 7
  8
   9
[top of page]

23+24.html
( W X )
     
   1
   0
  
   0
  
   0
+ 6
+ 6
  
+4
  
+7
 
 
   7
   6
  
   4
  
   7
[top of page]
"standing stones" becomes
STaNdiNgSToNeS with the duplicates removed, becomes
"adigones" (keep the third N and S in place)
ADIGONES needs to be "transmuted"