Palindromic Triangular Numbers/Historical Note

Historical Note on Palindromic Triangular Numbers

David Wells reports in Curious and Interesting Numbers of $1986$ that examples of the palindromic triangular numbers were examined by Charles Wilderman Trigg.


Sources

  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $15$
  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $15$
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