A combinatorial proof of Sun's “curious” identity.
Callan, David
Integers, Tome 4 (2004), / Harvested from The Electronic Library of Mathematics
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Publié le : 2004-01-01
EUDML-ID : urn:eudml:doc:124146 
@article{02124077,
     title = {A combinatorial proof of Sun's ``curious'' identity.},
     journal = {Integers},
     volume = {4},
     year = {2004},
     zbl = {1055.05007},
     language = {en},
     url = {http://dml.mathdoc.fr/item/02124077}
}

Callan, David. A combinatorial proof of Sun's “curious” identity.. Integers, Tome 4 (2004) . http://gdmltest.u-ga.fr/item/02124077/