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A202562 Carmichael numbers whose prime factors do not divide any smaller Carmichael number. 1
561, 84350561, 851703301, 2436691321, 34138047673, 60246018673, 63280622521, 83946864769, 110296864801, 114919915021, 155999871721, 225593397919, 342267565249, 534919693681, 660950414671, 733547013841, 1079942171239, 1301203515361, 1333189866793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Note that all terms so far have only three prime factors.

LINKS

Donovan Johnson, Table of n, a(n) for n = 1..1377 (terms < 10^18)

Eric Weisstein's World of Mathematics, Carmichael Number

Index entries for sequences related to Carmichael numbers

EXAMPLE

a(2) = 84350561 because 84350561 = 107*743*1061 and the smaller Carmichael numbers do not have the factors 107, 743 or 1061.

CROSSREFS

Cf. A002997, A087788.

Sequence in context: A097061 A213867 A139089 * A121508 A209907 A232679

Adjacent sequences:  A202559 A202560 A202561 * A202563 A202564 A202565

KEYWORD

nonn

AUTHOR

Arkadiusz Wesolowski, Dec 21 2011

STATUS

approved

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Last modified November 21 21:29 EST 2014. Contains 249791 sequences.