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Search: id:A069463
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A069463 Greatest prime factor of prime(n)^n+1. +0
2
3, 5, 7, 1201, 13421, 28393, 22796593, 563377, 1117, 470925821, 1048563011, 3512477579761, 644522798011, 22021301, 24317675453761, 14189041365214758401, 21199857783625129028395239857, 13842121, 292354984050175817, 613624820402521 (list; graph; listen)
OFFSET

1,1

COMMENT

a(n) = A006530(A062006(n)).

LINKS

Dario Alpern, Factorization using the Elliptic Curve Method.

EXAMPLE

A000040(10)^10+1=29^10+1=420707233300202=2*421*1061*470925821, therefore a(10)=470925821.

CROSSREFS

Cf. A069460.

Sequence in context: A068832 A046472 A065824 this_sequence A073691 A110336 A073695

Adjacent sequences: A069460 A069461 A069462 this_sequence A069464 A069465 A069466

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Mar 24 2002

EXTENSIONS

More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), May 21 2004

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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