List of the site's news added April 2nd, 2007
- April 2007: 5th anniversary of multimagie.com
Many thanks to the numerous searchers who sent their discoveries
during these 5 years, helping to greatly improve the contents.
Many thanks to Harvey Heinz, Walter Trump, Peter Bartsch,
for their great help on the English and German versions!
- On open problem #5:
- On open problems #1 and #2:
- new page on the latest research on the 3x3 magic square of squares problem,
including recent results from Ajai Choudhry, India,
Lee Morgenstern, USA,
Lucien Pech, France, Randall Rathbun, USA,
Jean-Claude Rosa, France
- On open problem #3:
- There are 363,949 trimagic series for
cubes of order 9, computed by Gildas Guillemot, France.
- First known trimagic square of order
48, by Chen Qinwu, China. The
known trimagic squares are scarce: orders 12, 16, 32, 48(the new!), 64, 81,...
- Another bimagic square of order 10
- Thanks to John Brillhart, USA, to have
(aleas unsuccessfully) searched in his archives the D.N.
Lehmer's lost paper on bimagic squares
- Older but interesting results:
- In 2003, Duncan Moore, England, did not
find any Taxicab(5, 3, 3) number < 1.7 * 10^21. Conclusion here:
we do not know how to construct a 9x9
semi-magic square of 5th powers using the Morgenstern's method.
- 50 years ago, Ronald Edwards, USA, published
a very astonishing 4x4 multiplicative
magic square, staying multiplicative magic when its numbers
are written backward!
- Site of Lee Morgenstern, USA, added in the
REMINDER of some of the most wanted
problems on "small" objects, extracted from the updated Problems
page. Is it possible to construct, using distinct integers:
- a 3x3 magic square of
- a 4x4 magic
square of cubes? or 5x5, 6x6, 7x7, 8x8? (using distinct positive integers)
- a 5x5 bimagic square?
- a ?x?x? multiplicative magic cube using distinct integers < 416?
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