cp's OEIS Frontend

A112079 Odd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) != 1.

%I A112079 #13 Mar 02 2023 22:57:54
%S A112079 529,10559,15791,34271,39959,50951,53231,53881,65159,69599,82871,
%T A112079 85801,86641,88079,88919,92039,92569,97919,102001,113879,117121,
%U A112079 123191,128519,129191,130729,138311,142271,144169,152591,157249,158759,164641,166319,166609,167879
%N A112079 Odd numbers k for which 23 is the smallest positive i with Jacobi symbol J(i,k) != 1.
%H A112079 Andy Huchala, <a href="/A112079/b112079.txt">Table of n, a(n) for n = 1..20000</a>
%o A112079 (Sage)
%o A112079 ls = []
%o A112079 for c in range(1, 10^5, 2):
%o A112079     for i in range(1, 24):
%o A112079         if jacobi_symbol(i, c) <= 0:
%o A112079             if i < 23:
%o A112079                 break
%o A112079             else:
%o A112079                 ls.append(c)
%o A112079 print(ls) # _Andy Huchala_, Feb 11 2023
%Y A112079 Row 9 of A112070.
%Y A112079 a(n) = 2*A112069(n) + 1.
%K A112079 nonn
%O A112079 1,1
%A A112079 _Antti Karttunen_, Aug 27 2005
%E A112079 a(31)-a(35) from _Andy Huchala_, Feb 10 2023
%E A112079 Name simplified by _Sean A. Irvine_, Feb 25 2023