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Search: id:A052357
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| A052357 |
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First prime from A031934 (=lesser of 16-twins, geminor-16 primes) such that its distance to the next 16-twin increases. |
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+0 1
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| 3373, 32917, 2221, 13597, 3391, 37783, 4057, 13537, 8581, 41911, 6763, 7333, 10867, 12457, 1831, 2113, 14683, 37201, 6637, 17581, 25423, 37447, 11353, 11197, 20611, 22453, 57397, 1933, 50707, 37591, 11503, 39733, 43207, 2593
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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The smallest distance between 16-twins [A052380(8)] is 18 and its minimal increment is 6.
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FORMULA
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a(n)=p is the smallest prime introducing [p, p+16, p+6n+12, p+6n+12+16] prime quadruple and [16, 6n-4, 16] d-pattern.
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EXAMPLE
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n=7, a(7)=p=4057 gives [4057,4073,4111,4127] quadruple and [16,38,16] distance pattern with 4 primes in the medial gap.
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CROSSREFS
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A031934, A053326, A053280, A053281.
Sequence in context: A014441 A139778 A139779 this_sequence A164521 A114769 A013803
Adjacent sequences: A052354 A052355 A052356 this_sequence A052358 A052359 A052360
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KEYWORD
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nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Mar 07 2000
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