Am I right?

1. there are 200 chains with first digit from 1 to 8
2. 201: 9-1-2
   202: 9-1-6
   203: 9-1-10
   204: 9-2-1
   205: 9-2-5
   206: 9-2-9
   207: 9-3-4
   208: 9-3-8
   209: 9-4-3
   210: 9-4-7
   211: 9-5-2
   212: 9-5-6
   213: 9-5-10 !!
   214: 9-6-1...

Then, is sample correct?

First chain has index 0. So test is correct.