03/06/2014       COMPETITION CLOSED: 3 pairs of tickets up for grabs for my Sunday Cheltenham talk on “The Simpsons & Their Mathematical Secrets”


Which decagonal number, which is also sphenic, regularly appears in The Simpsons?


742 (Evergreen Terrace), i.e., the house number of the Simpson family.

The competition was open until midnight, today, June 4. Competition now closed.