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A075279
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Interprimes which are of the form s*prime, s=4.
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1
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12, 76, 236, 356, 436, 596, 604, 1268, 1324, 1436, 1556, 1604, 1756, 2284, 2396, 3316, 3764, 3812, 4076, 4612, 4996, 5116, 5276, 5492, 5524, 5804, 6628, 6676, 6932, 6964, 7468, 7484, 7892, 8524, 8644, 8716, 9004, 9836, 11276, 12476, 14156, 14636
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OFFSET
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1,1
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COMMENTS
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Interprimes which are of the form s*prime are in A075277-A075296 (s = 2-21). Case s = 1 is impossible.
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LINKS
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EXAMPLE
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236 is an interprime and 236/4 = 59 is prime.
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MATHEMATICA
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s=4; Select[Table[(Prime[n+1]+Prime[n])/2, {n, 2, 1000}], PrimeQ[ #/s]&]
Select[Mean/@Partition[Prime[Range[2000]], 2, 1], PrimeQ[#/4]&] (* Harvey P. Dale, Jul 31 2018 *)
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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