П'ятикутне число (Ukrainian Wikipedia)

Analysis of information sources in references of the Wikipedia article "П'ятикутне число" in Ukrainian language version.

refsWebsite

Global rank Ukrainian rank

low place

low place

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388^th place

divye.in

How do you determine if a number N is a Pentagonal Number?

wolfram.com

mathworld.wolfram.com

Weisstein, Eric W. «Pentagonal Square Number.» From MathWorld--A Wolfram Web Resource.