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Search: id:A067748
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| A067748 |
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Smallest member of the first occurrence of exactly n consecutive primes whose sum of digits is also prime, or 0 if no such set of primes exists. |
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+0
1
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| 101, 23, 41, 191, 2, 2063, 4133, 3251, 1493, 6558733, 5684891, 35778571, 10109291, 10489861, 2442113, 466343539, 793234063, 10158613657, 5200298339, 281201652541
(list; graph; listen)
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OFFSET
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1,1
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COMMENT
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Next term involves primes > 10000000.
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EXAMPLE
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a(3) = 41 as 41,43,47 are the smallest triples of primes with digit sum all prime . a(5) = 2 and 2,3,5,7,11 is the set.
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CROSSREFS
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Sequence in context: A029949 A083152 A016112 this_sequence A138719 A043639 A152054
Adjacent sequences: A067745 A067746 A067747 this_sequence A067749 A067750 A067751
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KEYWORD
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base,hard,more,nonn
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AUTHOR
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Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Mar 09 2002
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EXTENSIONS
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Corrected and extended by Larry Reeves (larryr(AT)acm.org), Dec 19 2002
a(12)-a(20) from Donovan Johnson (donovan.johnson(AT)yahoo.com), Apr 05 2008
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