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A163981
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a(n)= the smallest prime of the form p(n+1)*k - p(n), k >=1, p(n) = the n-th prime.
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0
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7, 2, 2, 37, 2, 89, 2, 73, 151, 2, 43, 127, 2, 239, 59, 419, 2, 73, 359, 2, 401, 419, 1163, 881, 307, 2, 967, 2, 569, 3697, 397, 691, 2, 457, 2, 163, 821, 839, 179, 1259, 2, 2111, 2, 1777, 2, 223, 3803, 3863, 2, 3499, 1201, 2, 2269, 263, 269, 1889, 2, 283, 1409, 2, 2647
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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MAPLE
| a := proc (n) local k: for k while isprime(ithprime(n+1)*k-ithprime(n)) = false do end do: ithprime(n+1)*k-ithprime(n) end proc: seq(a(n), n = 1 .. 65); [From Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 10 2009]
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CROSSREFS
| A129919
Sequence in context: A010141 A199370 A154759 * A164575 A126341 A078087
Adjacent sequences: A163978 A163979 A163980 * A163982 A163983 A163984
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KEYWORD
| nonn
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AUTHOR
| Leroy Quet, Aug 07 2009
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EXTENSIONS
| Extended by Emeric Deutsch (deutsch(AT)duke.poly.edu), Aug 10 2009
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