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Search: id:A120829
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| A120829 |
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Primes with n consecutive digits descending beginning with the digit four. |
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+0
3
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OFFSET
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1,1
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COMMENT
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Digits are in descending order beginning with 1 and after 0 comes 9.
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EXAMPLE
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2 is a term since 43 is a prime.
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MATHEMATICA
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fQ[n_] := PrimeQ@ FromDigits@ Mod[5-Range@n, 10]; lst = {}; Do[ If[fQ@n, AppendTo[lst, n]; Print@n], {n, 10000}]; lst
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CROSSREFS
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Cf. A120804, A120823, A120828.
Sequence in context: A109667 A004853 A064010 this_sequence A120121 A047707 A134939
Adjacent sequences: A120826 A120827 A120828 this_sequence A120830 A120831 A120832
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KEYWORD
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base,hard,nonn
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AUTHOR
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Robert G. Wilson v (rgwv(AT)rgwv.com), Jul 05 2006
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