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Published online by Cambridge University Press:  03 February 2017

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The Mathematical Gazette , Volume 101 , Issue 550 , March 2017, pp. 146 - 149
Copyright
Copyright © Mathematical Association 2017 

References

References

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References

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Reference

1. Stephenson, Paul, http://www.magicmathworks.org/masterclasses, then ‘Numbershapes – figurate numbers’, then ‘Number shapes session notes (pdf)’.Google Scholar