Search: id:A007379
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%I A007379 M0973
%S A007379 0,2,4,5,8,12,7,24,16,10,36,13,20,44,15,56,32,18,68,21,48,76,23,88,28,
%T A007379 26,100,29,96,108,31,120,64,34,132,37,40,140,39,152,144,42,164,45,52,
%U A007379 172,47,184,80,50,196,53,176,204,55,216,60,58,228,61,224,236,63,248
%N A007379 Earliest sequence with a(a(n)) = 4n.
%D A007379 N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, 
               Academic Press, 1995 (includes this sequence).
%H A007379 T. D. Noe, <a href="b007379.txt">Table of n, a(n) for n=0..1000</a>
%H A007379 <a href="Sindx_Aa.html#aan">Index entries for sequences of the a(a(n)) 
               = 2n family</a>
%F A007379 a(8n)=4*a(2n), a(8n+1)=8n+2, a(8n+2)=32n+4, a(8n+3)=8n+5, a(8n+4)=4*a(2n+1), 
               a(8n+5)=32n+12, a(8n+6)=8n+7, a(8n+7)=32n+24
%Y A007379 Cf. A002516, A002517.
%Y A007379 Sequence in context: A039867 A080136 A080033 this_sequence A080588 A032850 
               A063465
%Y A007379 Adjacent sequences: A007376 A007377 A007378 this_sequence A007380 A007381 
               A007382
%K A007379 nonn,nice
%O A007379 0,2
%A A007379 C. L. Mallows (colinm(AT)research.avayalabs.com), N. J. A. Sloane (njas(AT)research.att.com), 
               Mira Bernstein
%E A007379 Formula and more terms from Henry Bottomley (se16(AT)btinternet.com), 
               Apr 27 2000

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