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Search: id:A133589
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| A133589 |
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Index of smallest prime number where n consecutive trailing digits of the index are equal to n consecutive trailing digits in the prime. |
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+0
2
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OFFSET
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1,1
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COMMENT
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Puzzle 217 on Carlos Rivera's The Prime Puzzles & Problems Connection has anticipated some of the concepts of this sequence. Several people have contributed to this puzzle, and some of its terms may be seen there. In particular, the first page of the puzzle includes some of the terms of this sequence.
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LINKS
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Carlos Rivera's The Prime Puzzles & Problems Connection, Puzzle 217
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EXAMPLE
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a(2)=243 because 2=2 and the two overlaying trailing or rightmost digits are 43 in the associated prime 1543.
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CROSSREFS
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Cf. A133583 A133584 A133590.
Sequence in context: A120661 A139057 A086214 this_sequence A142805 A119942 A130741
Adjacent sequences: A133586 A133587 A133588 this_sequence A133590 A133591 A133592
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KEYWORD
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easy,more,nonn,base
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AUTHOR
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Enoch Haga (Enokh(AT)comcast.net), Sep 18 2007
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EXTENSIONS
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a(5) and a(6) from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 20 2007
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