%I A053447
%S A053447 1,1,2,3,3,5,6,2,4,9,3,11,10,9,14,5,5,6,18,6,10,7,6,23,21,4,26,10,9,29,
%T A053447 30,3,6,33,11,35,9,10,15,39,27,41,4,14,11,6,5,18,24,15,50,51,6,53,18,
%U A053447 18,14,22,6,12,55,10,50,7,7,65,9,18,34,69,23,30,14,21,74,15,12,10,26
%N A053447 Multiplicative order of 4 mod 2n+1.
%H A053447 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               MultiplicativeOrder.html">Multiplicative Order</a>
%Y A053447 Cf. A070667-A070675, A002326, A070676, A070677, A070681, A070678, A053451, 
               A070679, A070682, A070680, A070683.
%Y A053447 Sequence in context: A051032 A106530 A050976 this_sequence A023160 A085312 
               A046530
%Y A053447 Adjacent sequences: A053444 A053445 A053446 this_sequence A053448 A053449 
               A053450
%K A053447 nonn
%O A053447 0,3
%A A053447 David W. Wilson (davidwwilson(AT)comcast.net)