« Vrati se

IMO Shortlist 1989 problem 11

1989 niz shortlist
Define sequence (a_n) by \sum_{d|n} a_d = 2^n. Show that n|a_n.

Slični zadaci

Lista Tekst Dva stupca
Zadaci
#NaslovOznakeRj.KvalitetaTežina
1845IMO Shortlist 1992 problem 18
1992 niz shortlist
0
1812IMO Shortlist 1991 problem 14
1991 niz shortlist
0
1796IMO Shortlist 1990 problem 26
1990 niz shortlist
0
1731IMO Shortlist 1988 problem 24
1988 niz shortlist
0
1715IMO Shortlist 1988 problem 8
1988 niz shortlist
0
1708IMO Shortlist 1988 problem 1
1988 niz shortlist
2