99 (liczba) (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "99 (liczba)" in Polish language version.

refsWebsite

Global rank Polish rank

742^nd place

1,271^st place

low place

low place

oeis.org

Ulam numbers: a(1) = 1; a(2) = 2; for n>2, a(n) = least number > a(n-1) which is a unique sum of two distinct earlier terms.. The On-Line Encyclopedia of Integer Sequences. [dostęp 2017-03-31]. (ang.).
Kaprekar numbers: positive numbers n such that n=q+r and n^2=q*10^m+r, for some m >= 1, q>=0 and 0<=r<10^m, with n != 10^a, a>=1.. The On-Line Encyclopedia of Integer Sequences. [dostęp 2017-03-31]. (ang.).
Erich Friedman: What’s Special About This Number. The On-Line Encyclopedia of Integer Sequences. [dostęp 2020-11-23]. (ang.).
Lucky numbers.. The On-Line Encyclopedia of Integer Sequences. [dostęp 2017-03-31]. (ang.).