Sure! A drabble series/sequence consists of multiple related drabbles, with each drabble making up a distinct part. Each part should be reasonably able to stand alone—though, just like a book or movie series, they can be deeply connected and it's fine if a later drabble requires the context of an earlier part in order to make sense. So:

Drabble Series/Sequence (Single Drabbles): Two or more single drabbles within the same continuity

Drabble Series/Sequence (Double Drabbles): Two or more double drabbles within the same continuity

Drabble Series/Sequence (Triple Drabbles): Two or more triple drabbles within the same continuity

Drabble Series/Sequence (Mix & Match): Two or more single, double, and/or triple drabbles within the same continuity

Please let us know if you have further questions!