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A120384
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Isolated primes: geometric mean of distances of a prime to neighboring primes sets record.
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0
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3, 5, 7, 23, 53, 89, 113, 211, 1259, 1327, 1847, 2179, 2503, 5623, 14107, 19661, 24281, 38501, 58831, 268343, 396833, 1272749, 2198981, 3863107, 4411963, 4958131, 5102953, 7950001, 8917523, 10938023, 12623189, 22440841, 24662467, 32616223
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| A096265 is based on arithmetic mean or total distance to neighbours. But it doesn't say its it is isolated from them or close to one of them.
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EXAMPLE
| a(4) = 23 because the distance (geometric mean) to its neighbours (19 and 29) equals = sqr(4*6) = 4.8989. No smaller prime is more isolated. The next more isolated prime a(5) is 53.
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CROSSREFS
| Cf. A096265.
Sequence in context: A057182 A038916 A019363 * A096505 A141802 A029846
Adjacent sequences: A120381 A120382 A120383 * A120385 A120386 A120387
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KEYWORD
| nonn
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AUTHOR
| Alexis Monnerot-Dumaine (alexis.monnerotdumaine(AT)gmail.com), Jun 29 2006
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EXTENSIONS
| Offset corrected and a(22)-a(34) from Donovan Johnson (donovan.johnson(AT)yahoo.com), May 23 2010
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