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A050977 Haupt-exponents of 5 modulo integers relatively prime to 5.

%I A050977 #12 Feb 16 2025 08:32:41
%S A050977 1,2,1,2,6,2,6,5,2,4,6,4,16,6,9,6,5,22,2,4,18,6,14,3,8,10,16,6,36,9,4,
%T A050977 20,6,42,5,22,46,4,42,16,4,52,18,6,18,14,29,30,3,6,16,10,22,16,22,5,6,
%U A050977 72,36,9,30,4,39,54,20,82,6,42,14,10,44,12,22,6,46,8,96,42,30,25,16
%N A050977 Haupt-exponents of 5 modulo integers relatively prime to 5.
%H A050977 R. J. Mathar, <a href="/A050977/b050977.txt">Table of n, a(n) for n = 1..7999</a>
%H A050977 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/MultiplicativeOrder.html">Multiplicative Order</a>
%p A050977 n := 1 :
%p A050977 for i from 2 to 10000 do
%p A050977     if igcd(i,5) = 1 then
%p A050977         printf("%d %d\n",n,numtheory[order](5,i)) ;
%p A050977         n := n+1 ;
%p A050977     end if;
%p A050977 end do: # _R. J. Mathar_, Oct 14 2014
%Y A050977 Cf. A002326 (base 2), A050975 (base 3), A002329.
%K A050977 nonn
%O A050977 1,2
%A A050977 _Eric W. Weisstein_