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A284665
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Numbers of form p^i + p^j for p prime and i, j > 0.
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1
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4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 30, 32, 34, 36, 38, 40, 46, 48, 50, 54, 56, 58, 62, 64, 66, 68, 72, 74, 80, 82, 84, 86, 90, 94, 96, 98, 106, 108, 118, 122, 128, 130, 132, 134, 136, 142, 144, 146, 150, 158, 160, 162, 166, 178, 182, 192, 194
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OFFSET
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1,1
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COMMENTS
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All terms are even.
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LINKS
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EXAMPLE
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24 = 2^4 + 2^3.
30 = 3^3 + 3^1 = 5^2 + 5^1.
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PROG
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(PARI) limit=L; v=vector(limit); for(n=1, limit, forprime(p=2, n/2, for(k=1, logint(n\2, 2), for(j=k, logint(n, 2), if(n-p^k==p^j, v[n]=1, ))))); for(n=1, limit, if(v[n], print1(n", ")))
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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