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Search: id:A098227
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| A098227 |
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Number of primes with exactly n decimal digits which have repeated digits. |
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+0
6
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| 0, 1, 46, 551, 5834, 58667, 552131, 5006366, 44940852, 404204977, 3663002302, 33489857205, 308457624821, 2858876213963, 26639628671867, 249393770611256, 2344318816620308, 22116397130086627, 209317712988603747
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OFFSET
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1,3
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COMMENT
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Above n=9 a[n]=A006879[n] because above 10 repetition must occur. At n=10 the sum of digits 0+1+2+3+4+5+6+7+8+9=45 is divisible by 3, so no primes with 10 distinct decimal digits exists, all primes must have repeated digits.
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EXAMPLE
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Above n=9 a[n]=A006879[n] because above 10 there must be a repetition. At n=10 the sum of digits 0+1+2+3+4+5+6+7+8+9=45 is divisible by 3, so no primes with 10 distinct decimal digits exist.
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CROSSREFS
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Cf. A006880, A006879, A098224-A098226.
Sequence in context: A111304 A055751 A027940 this_sequence A077732 A078156 A066405
Adjacent sequences: A098224 A098225 A098226 this_sequence A098228 A098229 A098230
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KEYWORD
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base,nonn
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AUTHOR
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Labos E. (labos(AT)ana.sote.hu), Oct 25 2004
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