Geodesic
Representation of integer numbers by values of the Ramanujan function
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 6 (2011), pp. 49-52 
P. V. Snurnitsyn. Representation of integer numbers by values of the Ramanujan function. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 6 (2011), pp. 49-52. http://geodesic.mathdoc.fr/item/VMUMM_2011_6_a11/
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     author = {P. V. Snurnitsyn},
     title = {Representation of integer numbers by values of the {Ramanujan} function},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {49--52},
     year = {2011},
     number = {6},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2011_6_a11/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

It is proved that every integer number can be expressed as a sum of 7940 values of the Ramanujan tau function.