Search: id:A097273
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%I A097273
%S A097273 1,2,3,4,6,8,9,12,15,16,18,24,27,30,32,36,45,48,54,60,64,72,81,90,96,
%T A097273 105,108,120,128,135,144,162,180,192,210,216,225,240,243,256,270,288,
%U A097273 315,324,360,384,405,420,432,450,480,486,512,540,576,630,648,675,720
%N A097273 Least integer with each "mod 2 prime signature".
%C A097273 For n=2^a_0*p_1^a_1*...*p_n^a_n where p_i is odd prime and a_1>=a_2>=...>
               =a_n, define "mod 2 prime signature" to be ordered prime exponents 
               (a_0,a_1,...,a_n).
%C A097273 Least integer with a given mod 2 prime signature is obtained by replacing 
               p_1 with 3, p_2 with 5,..., p_n with n-th odd prime.
%C A097273 A097272 sorted and duplicates removed; n such that A097272(n)=n.
%Y A097273 Cf. A097272, A097274, A097275.
%Y A097273 Sequence in context: A145807 A122380 A033501 this_sequence A006446 A002348 
               A019469
%Y A097273 Adjacent sequences: A097270 A097271 A097272 this_sequence A097274 A097275 
               A097276
%K A097273 nonn
%O A097273 0,2
%A A097273 Ray Chandler (rayjchandler(AT)sbcglobal.net), Aug 22 2004

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