The integer sequence A002620 and upper antagonistic functions.
Speed, Sam E.
Journal of Integer Sequences [electronic only], Tome 6 (2003), / Harvested from The Electronic Library of Mathematics
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Publié le : 2003-01-01
EUDML-ID : urn:eudml:doc:50004 
@article{01919532,
     title = {The integer sequence A002620 and upper antagonistic functions.},
     journal = {Journal of Integer Sequences [electronic only]},
     volume = {6},
     year = {2003},
     zbl = {1012.05009},
     language = {en},
     url = {http://dml.mathdoc.fr/item/01919532}
}

Speed, Sam E. The integer sequence A002620 and upper antagonistic functions.. Journal of Integer Sequences [electronic only], Tome 6 (2003) . http://gdmltest.u-ga.fr/item/01919532/