Use the following excel file to check (enter (-) number) constants  or number of steps to constant 9
https://drive.google.com/file/d/0B03s-v1XHNIyOVA1QVFvMUVVc2s/view?usp=sharing
Constants Base value and Loop Value:
No of Digits 
 | 
Constants Base Value 
 | 
Constants or Loop value 
 | 
1 
 | 
1 
 | 
9 
 | 
2 
 | 
11 
 | 
495 
 | 
3 
 | 
111 
 | 
6,174 
 | 
4 
 | 
1,111 
 | 
74,943 
 | 
5 
 | 
11,111 
 | 
8,60,832 
 | 
6 
 | 
1,11,111 
 | 
95,29,641 
 | 
7 
 | 
11,11,111 
 | 
8,65,26,432 
 | 
8 
 | 
1,11,11,111 
 | 
86,30,98,632 
 | 
9 
 | 
11,11,11,111 
 | 
8,76,52,64,322 
 | 
10 
 | 
1,11,11,11,111 
 | 
86,42,09,87,532 
 | 
11 
 | 
11,11,11,11,111 
 | 
8,76,53,26,64,322 
 | 
12 
 | 
1,11,11,11,11,111 
 | 
86,54,31,97,65,432 
 | 
13 
 | 
11,11,11,11,11,111 
 | 
8,77,65,32,66,43,222 
 | 
14 
 | 
1,11,11,11,11,11,111 
 | 
98,64,33,19,76,65,311 
 | 
9 
 | 
12,34,56,789 
 | 86,41,97,532 |