On the sum of iterations of the Euler function
Journal of integer sequences, Tome 9 (2006) no. 1.

Voir la notice de l'article provenant de la source Electronic Library of Mathematics

Summary: We study the sum
Classification : 11N37, 11N60
Keywords: Euler function, iterations, congruences
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     title = {On the sum of iterations of the {Euler} function},
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Shparlinski, Igor E. On the sum of iterations of the Euler function. Journal of integer sequences, Tome 9 (2006) no. 1. http://geodesic.mathdoc.fr/item/JIS_2006__9_1_a7/