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 A256842 Initial members of 5 twin primes with the smallest possible difference of 30. 2
 39713433671, 66419473031, 71525244611, 286371985811, 480612532451, 535181743301, 789972743471, 1195575264641, 1219449947921, 1256522812841, 1292207447351, 1351477467251, 1450982599271, 1460592638171, 1515361442261, 1592346154541 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS There are 5 twin primes in a group of 39 numbers. The term 5TP39 was suggested by prime number researcher Roger Hargrave on 16-FEB-2003. It is also the lowest number of ten primes. We only have to test primes of the form p = 2310n + 821 and p = 2310n + 1451. Similar to A059925, but here we have additionally a twin pair of primes in the middle. LINKS Sebastian Petzelberger, Table of n, a(n) for n = 1..10000 The data and the b-file were compiled from the link below. D. L. P. Ballard, Hargrave Primes Thomas R. Nicely, Dense prime clusters CROSSREFS Cf. A059925. Sequence in context: A112446 A295460 A216018 * A225886 A199428 A287261 Adjacent sequences:  A256839 A256840 A256841 * A256843 A256844 A256845 KEYWORD nonn AUTHOR Sebastian Petzelberger, Apr 21 2015 STATUS approved

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Last modified January 20 02:38 EST 2018. Contains 297938 sequences.