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A137612 Greater of a pair of closest (n-digit) distinct primes that add up to 10^n. 2
7, 53, 509, 5081, 50123, 500057, 5000087, 50000243, 500000069, 5000000063, 50000000189, 500000000231, 5000000001569, 50000000000381, 500000000000231, 5000000000001443, 50000000000001113, 500000000000000321 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
PROG
(PARI) local(t); n=10^n; t=nextprime(n/2+1); while(!isprime(n-t), t=nextprime(t+1)); t \\ Charles R Greathouse IV, Sep 29 2008
CROSSREFS
Cf. A137611.
Sequence in context: A350252 A120272 A057180 * A092802 A062207 A073564
KEYWORD
nonn,base
AUTHOR
Lekraj Beedassy, Jan 29 2008
EXTENSIONS
a(7)-a(30) from Charles R Greathouse IV, Sep 29 2008
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)