There is a total of 15 terms, 15 of which have no children.
Overall statistics
There is a total of 616 terms, 602 of which have no children.
Scratchpads developed and conceived by (alphabetical):
Ed Baker,
Katherine Bouton
Alice Heaton
Dimitris Koureas,
Laurence Livermore,
Dave Roberts,
Simon Rycroft,
Ben Scott,
Vince Smith