On the powerful part of $n\sp 2+1$
Puchta, Jan-Christoph
Archivum Mathematicum, Tome 039 (2003), p. 187-189 / Harvested from Czech Digital Mathematics Library
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We show that $n^2+1$ is powerfull for $O(x^{2/5+\epsilon })$ integers $n\le x$ at most, thus answering a question of P. Ribenboim.

Publié le : 2003-01-01
Classification:  11D09,  11D25,  11N25 
@article{107865,
     author = {Jan-Christoph Puchta},
     title = {On the powerful part of $n\sp 2+1$},
     journal = {Archivum Mathematicum},
     volume = {039},
     year = {2003},
     pages = {187-189},
     zbl = {1122.11311},
     mrnumber = {2010719},
     language = {en},
     url = {http://dml.mathdoc.fr/item/107865}
}

Puchta, Jan-Christoph. On the powerful part of $n\sp 2+1$. Archivum Mathematicum, Tome 039 (2003) pp. 187-189. http://gdmltest.u-ga.fr/item/107865/

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