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Search: a074382 -id:a074382
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A074383
Difference between (1+10^n)-th and (10^n)-th primes.
+10
1
1, 2, 6, 8, 14, 12, 4, 18, 8, 24, 6, 42, 18, 48, 60, 52, 48, 8, 22, 20, 60, 38, 54, 48, 58
(list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
Table of n, a(n) for n=0..24.
FORMULA
a(n) = prime(1+10^n) - prime(10^n).
a(n) = A151800(A006988(n)) - A006988(n).
EXAMPLE
a(18)=22 because the (10^18)th prime is 44211790234832169331, the (1+10^18)th prime is 44211790234832169353.
CROSSREFS
Cf. A006988, A074325, A038833, A074382.
KEYWORD
hard,more,nonn
AUTHOR
Labos Elemer, Aug 22 2002
EXTENSIONS
a(19) from Max Alekseyev, May 08 2009
a(20)-a(22) from Max Alekseyev, Dec 04 2014
a(23)-a(24) from Chai Wah Wu using the terms in A006988, Sep 18 2018
STATUS
approved
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Last modified November 7 08:07 EST 2024. Contains 377523 sequences.
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