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Search: id:A135639
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A135639 a(n) = 839*n. +0
4
0, 839, 1678, 2517, 3356, 4195, 5034, 5873, 6712, 7551, 8390, 9229, 10068, 10907, 11746, 12585, 13424, 14263, 15102, 15941, 16780, 17619, 18458, 19297, 20136, 20975, 21814, 22653, 23492, 24331, 25170, 26009, 26848, 27687, 28526 (list; graph; listen)
OFFSET

0,2

COMMENT

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.

LINKS

American Institute of Mathematics, Mathematicians Maps E_8.

EXAMPLE

a(1)=839. a(540)=540*839=453060. a(244652400)=244652400*839=205263363600.

CROSSREFS

Cf. A134888, A135631.

Sequence in context: A138850 A016113 A118380 this_sequence A135640 A095119 A102793

Adjacent sequences: A135636 A135637 A135638 this_sequence A135640 A135641 A135642

KEYWORD

easy,nonn

AUTHOR

Omar E. Pol (info(AT)polprimos.com), Nov 27 2007, Nov 29 2007

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.


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