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Search: id:A053547
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A053547 Smallest prime containing leading sequence of n descending numbers. +0
2
11, 211, 3217, 432121, 543217, 65432117, 76543217, 876543211, 9876543211, 1098765432101, 11109876543211, 12111098765432101, 1312111098765432139, 141312111098765432113, 15141312111098765432173 (list; graph; listen)
OFFSET

1,1

EXAMPLE

a(6)=65432117 is smallest prime beginning with the string 654321.

CROSSREFS

Adjacent sequences: A053544 A053545 A053546 this_sequence A053548 A053549 A053550

Sequence in context: A075858 A136307 A038399 this_sequence A053582 A077714 A089567

KEYWORD

easy,nice,nonn

AUTHOR

Enoch Haga (Enokh(AT)comcast.net), Jan 16 2000

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Last modified October 12 15:26 EDT 2008. Contains 144830 sequences.


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