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A006988
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(10^n)-th prime.
(Formerly M2151)
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26
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2, 29, 541, 7919, 104729, 1299709, 15485863, 179424673, 2038074743, 22801763489, 252097800623, 2760727302517, 29996224275833, 323780508946331, 3475385758524527, 37124508045065437, 394906913903735329, 4185296581467695669, 44211790234832169331, 465675465116607065549, 4892055594575155744537
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,1
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COMMENTS
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Check the b-file for more terms which might not be listed above.
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REFERENCES
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R. L. Graham, D. E. Knuth and O. Patashnik, Concrete Mathematics. Addison-Wesley, Reading, MA, 1990, p. 111.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
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LINKS
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M. F. Hasler, Table of n, a(n) for n = 0..20
C. K. Caldwell, Mark Deleglise's work on new values of pi(x)
UTM, The Nth Prime Page.
Eric Weisstein's World of Mathematics, Prime Numbers
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EXAMPLE
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a(0) = 10^0-th prime = first prime = 2.
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MATHEMATICA
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Table[Prime[10^n, {n, 0, 17}]
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PROG
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(PARI) a(n)=prime(10^n) \\ Charles R Greathouse IV, Jul 21 2011
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CROSSREFS
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Cf. A006880, A033844, A119780.
Sequence in context: A104535 A187362 A176938 * A090251 A087281 A024234
Adjacent sequences: A006985 A006986 A006987 * A006989 A006990 A006991
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KEYWORD
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nonn,nice
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AUTHOR
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N. J. A. Sloane, Robert G. Wilson v
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EXTENSIONS
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More terms from Paul.Zimmermann(AT)loria.fr (Paul Zimmermann)
a(19) from Marc Deleglise (marc.deleglise(AT)math.univ-lyon1.fr), Jun 29 2008
a(20) found by Andrey V. Kulsha using a program by Xavier Gourdon, Oct 05 2011
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STATUS
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approved
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