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A092245
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Lesser of the first twin prime pair with n digits.
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0
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3, 11, 101, 1019, 10007, 100151, 1000037, 10000139, 100000037, 1000000007, 10000000277, 100000000817, 1000000000061, 10000000001267, 100000000000097, 1000000000002371, 10000000000001549, 100000000000000019
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| Sum of reciprocals = 0.43523579465477..
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PROG
| (PARI) firsttwpr(n) = { sr=0; for(m=0, n, c=0; for(x=10^m+1, 10^(m+1), if(isprime(x)&& isprime(x+2), print1(x", "); sr+=1./x; break) ) ); print(); print(sr) }
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CROSSREFS
| Sequence in context: A154299 A007616 A121045 * A105413 A183381 A136985
Adjacent sequences: A092242 A092243 A092244 * A092246 A092247 A092248
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KEYWORD
| base,nonn
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AUTHOR
| Cino Hilliard (hillcino368(AT)gmail.com), Feb 17 2004
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EXTENSIONS
| Corrected by T. D. Noe (noe(AT)sspectra.com), Nov 15 2006
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