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A137859
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Number of primes between the n-th squared twin prime pair.
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2
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5, 6, 9, 11, 16, 20, 32, 30, 42, 42, 49, 58, 76, 77, 75, 82, 90, 91, 99, 107, 125, 151, 151, 145, 165, 189, 168, 189, 194, 211, 241, 244, 246, 259, 262, 290, 304, 300, 311, 314
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| a(n) = SUM(A010051(k): A006512(n)^2 <= k <= A001359(n)^2) =
A000720(A006512(n)^2)-A000720(A001359(n)^2).
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EXAMPLE
| a(4) = #{293,307,311,313,317,331,337,347,349,353,359} = 11.
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CROSSREFS
| Cf. A079629, A137860.
Sequence in context: A117827 A134736 A179662 * A082576 A177731 A074185
Adjacent sequences: A137856 A137857 A137858 * A137860 A137861 A137862
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KEYWORD
| nonn
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AUTHOR
| Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Feb 16 2008
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