MiniCalendar Week Numbers Markers
The other ones follow sequentially.
There is specific behaviour, if the setting Week Starts is set to Sundays :
•The value of w# always refers to the Monday of that row.
•If Days Outside of Month is set to hide, and if the last day of the month is a Sunday, then the last week number will be repeated, since the Sunday does not belong to the following week (see example above).
If all the dates of the 6th week of a MiniCalendar belong to the following month, then that week number will not be displayed (it can also occur on rare occasions fo the 5th week, if February begins on a Monday).
See also : One-Line-Minicalendars.