On repdigit polygonal numbers.
Keith, Mike
Journal of Integer Sequences [electronic only], Tome 1 (1998), / Harvested from The Electronic Library of Mathematics
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Publié le : 1998-01-01
EUDML-ID : urn:eudml:doc:224998 
@article{01196087,
     title = {On repdigit polygonal numbers.},
     journal = {Journal of Integer Sequences [electronic only]},
     volume = {1},
     year = {1998},
     zbl = {1010.11008},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01196087}
}

Keith, Mike. On repdigit polygonal numbers.. Journal of Integer Sequences [electronic only], Tome 1 (1998) . http://gdmltest.u-ga.fr/item/01196087/