There is a total of 150 terms, 81 of which have no children.
Overall statistics
There is a total of 551 terms, 365 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