Search: id:A135639
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%I A135639
%S A135639 0,839,1678,2517,3356,4195,5034,5873,6712,7551,8390,9229,10068,10907,
%T A135639 11746,12585,13424,14263,15102,15941,16780,17619,18458,19297,20136,
%U A135639 20975,21814,22653,23492,24331,25170,26009,26848,27687,28526
%N A135639 a(n) = 839*n.
%C A135639 The 146th prime number (839) and some of its multiples are related to 
               the exceptional Lie group E_8 calculation because the result is a 
               matrix with 453060 rows and columns. The size of the matrix is the 
               member a(540)=453060 of this sequence. The number 839 is the largest 
               prime factor of 453060 because we can write 2*2*3*3*3*5*839=453060. 
               The number of entries of the matrix is the member a(244652400)=453060*453060=205263363600.
%H A135639 American Institute of Mathematics, <a href="http://aimath.org/E8">Mathematicians 
               Maps E_8</a>.
%e A135639 a(1)=839. a(540)=540*839=453060. a(244652400)=244652400*839=205263363600.
%Y A135639 Cf. A134888, A135631.
%Y A135639 Sequence in context: A016113 A167603 A118380 this_sequence A158401 A156937 
               A135640
%Y A135639 Adjacent sequences: A135636 A135637 A135638 this_sequence A135640 A135641 
               A135642
%K A135639 easy,nonn
%O A135639 0,2
%A A135639 Omar E. Pol (info(AT)polprimos.com), Nov 27 2007, Nov 29 2007

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