These are patterns which have no other patterns which instantiate them. Note that some additional patterns would be Atomic Patterns if they did not have one or more of the patterns in this category as special cases. For all patterns, see the complete list of patterns.
Note that there is subjectivity inherent in this category. Taken for example the pattern Dice, one could easily construct patterns such as "6-sided dice" and "4-sided dice" but for practical purposes these are simply variations of the same pattern. However, this means that some patterns listed here may be remove in the future.
Note also that the the collections clearly hasn't been iterated to mark patterns as belonging to this category.