

A158579


a(n) = largest member of the nth term in S(10) (defined in Comments).


4



7, 97, 997, 9973, 99991, 999983, 9999991, 294001, 505447, 584141, 604171, 929573, 971767, 99999989, 1062599, 1282529, 1524181, 2017963, 2474431, 2690201, 3070663, 3085553, 3326489, 4393139, 5152507, 5285767, 5564453, 5575259
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OFFSET

1,1


COMMENTS

Let H(L,b) be the Hamming graph whose vertices are the sequences of length L over the alphabet {0,1,...,b1} with adjacency being defined by having Hamming distance 1. Let P(L,b) be the subgraph of H(L,b) induced by the set of vertices which are base b representations of primes with L digits (not allowing leading 0 digits). Let S(b) be the sequence of all components of the graphs P(L,b), L>0, sorted by the smallest prime in a component.


LINKS

Table of n, a(n) for n=1..28.


CROSSREFS

A158576A158579, A145667A145674
Sequence in context: A127892 A125590 A068694 * A003618 A173833 A093172
Adjacent sequences: A158576 A158577 A158578 * A158580 A158581 A158582


KEYWORD

base,hard,nonn


AUTHOR

W. Edwin Clark, Mar 21 2009


STATUS

approved



