Numero intoccabile (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Numero intoccabile" in Italian language version.

refsWebsite

Global rank Italian rank

742^nd place

1,122^nd place

1planetmath.org

low place

low place

oeis.org

(EN) Sequenza A005114, su On-Line Encyclopedia of Integer Sequences, The OEIS Foundation.

planetmath.org

P. Erdős, Über die Zahlen der Form σ(n)-n und n-π(n). Elemente der Math. 28 (1973), 83-86, [1]