a(n-2) | (a(n)+a(n-1)): only primes

[Peter Pein]

zak seidov schrieb:
> Dear seqfans,
> 
> Anyone with C++ may wish to add more terms?
> 
> Thanks, Zak
> 
> %S A000001
> 2,3,5,7,3,11,7,37,5,439,11,7013,379,27673,373,54973,977,548753,4229,7678313,10009,230339381,27763,5067438619,197297
> %N A000001 a(1) =2 , a(2) = 3, a(n) = least prime such
> that a(n-2) | (a(n)+a(n-1))
> %A A000001 Zak Seidov  (zakseidov at gmail.com), Jan 07
> 2007
> 
> 
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Sorry,

I do not understand, why a(3) = 5 > 3, because 2 | (3 + 3)

??
Peter