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Search: id:A052355
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| A052355 |
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First prime from A031930 (=lesser of 12-twins) with increasing distance to the next 12-twin. |
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+0
1
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| 199, 7937, 3331, 3049, 1511, 1789, 28607, 7001, 20599, 2069, 18257, 46477, 1201, 15569, 1459, 467, 23087, 23041, 2399, 6101, 7057, 6607, 23801, 3931, 3499, 9029, 5197, 7841, 3191, 1237, 3259, 45767, 4801, 1811, 1709, 40867, 23497
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OFFSET
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1,1
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COMMENT
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The smallest distance between 12-twins [A052380(6)] is 12 and its minimal increment is 2.
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FORMULA
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a(n)=p specifies a quadruple [p, p+12, p+2n+10, p+2n+10+12] with d-pattern of [12, 2n-2, 12].
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EXAMPLE
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1. n=2 results in [7937, 7949, 7951, 7963] p and [12, 2, 12] d- pattern.
2. n=5 specifies [1511, 1523, 1531, 1543] p and [12, 8, 12] d- pattern without prime in the central gap.
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CROSSREFS
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A031930, A053324, A053280, A053281.
Sequence in context: A086977 A163712 A069244 this_sequence A153179 A097732 A155508
Adjacent sequences: A052352 A052353 A052354 this_sequence A052356 A052357 A052358
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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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