Flagging number sequences as profanes

### False Positives
The following shouldn't have been detected, but was:
```
45 45
95 95
96 96 
99 99
4050035
```



### False Negatives
The following should have been detected, but wasn't:
```

```


### Context

I am using `rustrict` version `X.Y.Z` (if not latest version)