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A163082
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Primes of the form p$ - 1 where p is prime. Here '$' denotes the swinging factorial function (A056040).
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OFFSET
| 1,1
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COMMENTS
| The first values of p are 3, 5, 7, 13, 41 from A163080. Subsequence of A163076 (primes of the form n$ - 1).
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REFERENCES
| Peter Luschny, "Divide, swing and conquer the factorial and the lcm{1,2,...,n}", preprint, April 2008.
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LINKS
| Peter Luschny, Swinging Primes.
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EXAMPLE
| 3 and 3$ - 1 = 5 are prime, so 5 is a member.
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MAPLE
| a := proc(n) select(isprime, [$2..n]); select(isprime, map(x -> A056040(x)-1, %)) end:
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CROSSREFS
| Cf. A163074 through A163083.
Sequence in context: A000352 A034332 A146053 * A189430 A060963 A107002
Adjacent sequences: A163079 A163080 A163081 * A163083 A163084 A163085
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KEYWORD
| nonn
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AUTHOR
| Peter Luschny (peter(AT)luschny.de), Jul 21 2009
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