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Search: id:A069820
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A069820 (a(n)^2-1)/(n^2-1) is the smallest integer>1. +0
1
4, 5, 11, 7, 29, 17, 55, 31, 89, 19, 131, 29, 64, 97, 86, 127, 305, 71, 113, 89, 139, 65, 551, 79, 649, 155, 755, 41, 869, 161, 340, 511, 76, 271, 519, 305, 443, 151, 493, 71, 1721, 155, 386, 461, 424, 367, 2255, 401, 832, 599, 902, 649, 529, 377, 419, 407 (list; graph; listen)
OFFSET

2,1

CROSSREFS

Sequence in context: A147559 A007429 A064945 this_sequence A027708 A047374 A100107

Adjacent sequences: A069817 A069818 A069819 this_sequence A069821 A069822 A069823

KEYWORD

easy,nonn

AUTHOR

Benoit Cloitre (benoit7848c(AT)orange.fr), Apr 28 2002

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.


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