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Search: id:A120396
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A120396 a(1)=least k such that p(1)=(k*17)^2 + k*17 -1 is prime (so a(1)=4 as (4*17)^2 + 4*17 - 1 = 4691 = p(1) = prime), then a(n+1)=least k such that (k*p(n))^2 + k*p(n) -1 = p(n+1) = prime. +0
1
4, 4, 1, 46, 51, 197, 216, 225 (list; graph; listen)
OFFSET

1,1

COMMENT

p sequence starts 4691,352106459,123978958821625139

CROSSREFS

Sequence in context: A136214 A067328 A111845 this_sequence A058888 A120438 A038800

Adjacent sequences: A120393 A120394 A120395 this_sequence A120397 A120398 A120399

KEYWORD

nonn

AUTHOR

Pierre CAMI (pierrecami(AT)tele2.fr), Jul 01 2006

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Last modified August 29 17:54 EDT 2008. Contains 143238 sequences.


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