• Gordon Lee
  • Nevin B. Scrimshaw


The other Sunday, the hymn numbers on the board appeared as shown. It caught my eye because I saw that all the digits were different. I then noticed that the second hymn number was twice the first, and the third was equal to the first two added together.


Phone Number Secret Message Pocket Calculator Room Number Curious Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Birkhauser Boston, Inc. 1983

Authors and Affiliations

  • Gordon Lee
  • Nevin B. Scrimshaw

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