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Search: id:A074982
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| A074982 |
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Primes for which the three closest primes are smaller. |
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+0
8
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| 113, 199, 317, 467, 829, 863, 887, 1129, 1307, 1327, 1637, 1669, 1879, 1951, 2089, 2251, 2311, 2477, 2557, 2803, 2971, 3229, 3259, 3271, 3373, 3469, 3739, 3947, 4027, 4139, 4297, 4463, 4523, 4733, 5023, 5119, 5237, 5351, 5449, 5483, 5531, 5591, 5659
(list; graph; listen)
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OFFSET
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1,1
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EXAMPLE
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The three closest primes to 113 are 109 (difference = 4), 107 (difference = 6) and 103 (difference = 10). 109, 107 and 103 are all smaller than 113, so 113 is in the list.
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MATHEMATICA
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NextPrim[n_] := Block[{k = n + 1}, While[ !PrimeQ[k], k++ ]; k]; ps = {0, 0, 0, 0, 1}; Do[ps = Drop[ps, 1]; ps = Append[ps, NextPrim[ ps[[ -1]]]]; If[ ps[[ -1]] - ps[[ -2]] > ps[[ -2]] - ps[[1]], Print[ ps[[ -2]]]], {n, 1, 756}]
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CROSSREFS
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Cf. A001223, A074979, A075030, A075037, A075038, A075043, A075050 and A075051.
Sequence in context: A087703 A056710 A124585 this_sequence A094932 A142276 A054695
Adjacent sequences: A074979 A074980 A074981 this_sequence A074983 A074984 A074985
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KEYWORD
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nonn
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AUTHOR
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N. Fernandez (primeness(AT)borve.org), Oct 10 2002
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EXTENSIONS
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Edited by Robert G. Wilson v (rgwv(AT)rgwv.com), Oct 11 2002
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