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Search: id:A052358
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| A052358 |
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First prime from A031936 (lesser of 18-twin primes) such that its distance to the next 18-twin increases. |
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+0
2
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| 20183, 20963, 14011, 26759, 7433, 45613, 4703, 21911, 26539, 18233, 6581, 4423, 73, 37379, 55903, 25801, 4373, 6529, 35879, 119993, 22171, 12923, 10691, 52609, 14303, 16231, 21121, 103049, 17863, 6451, 50341, 76129, 3803, 23251, 15241
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OFFSET
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1,1
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COMMENT
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The smallest distance between 18-twins [A052380(9)] is 18 and its minimal increment is 2.
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FORMULA
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a(n)=p is the first prime initiating [p, p+18, p+2n+16, p+2n+16+18] prime and [18, 2n-2, 18] d-pattern.
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EXAMPLE
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n=3 a(3)=14011 initiates [14011,14029,14033,14051] or [18,4,18] p and d-patterns.
n=7 a(7)=4703 specifies [4703,4721,4133,4151], [18,28,18] including 2 primes (4723,4729) in the center.
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CROSSREFS
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A031936, A053327, A053280, A053281.
Sequence in context: A119648 A127224 A114613 this_sequence A052189 A075670 A053073
Adjacent sequences: A052355 A052356 A052357 this_sequence A052359 A052360 A052361
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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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