Wolfram Language & System 10.3 (2015)|Legacy Documentation
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gives a count of the number of times sub appears as a sublist of list.
gives the number of sublists in list that match the general sequence pattern patt.
- In SequenceCount[list,patt], patt can be an expression with head List that includes pattern constructs such as PatternSequence, Repeated (..), Blank (_), and BlankSequence (__).
- The pattern patt can also be a pattern that matches a list, though does not itself have head List.
- With the default option setting OverlapsFalse, SequenceCount includes only sublists that do not overlap. With the setting OverlapsTrue, it includes sublists that overlap.
- With Overlaps->All, multiple sublists that match the same pattern are all included. With Overlaps->True, only the first such matching sublist at a given position is included.
Introduced in 2015