

A299213


LucasCarmichael numbers whose prime factors do not divide any smaller LucasCarmichael number.


0




OFFSET

1,1


COMMENTS

Also numbers whose number of occurrence in A253597 equals the number of their prime factors.
All known terms have only 3 prime factors. Does any term with more than 3 prime factors exist?


LINKS



EXAMPLE

565861139 = 193*1163*2521 and no smaller LucasCarmichael number is divisible by 193, 1163 or 2521.


PROG

(PARI) a=readvec("b006972.txt"); print1(399); for(b=2, 10000, e=true; f=factor(a[b]); for(d=1, #f[, 1], for(c=1, b1, if(a[c]%f[d, 1]==0, e=false))); if(e==true, print1(", ", a[b])))


CROSSREFS



KEYWORD

nonn,more


AUTHOR



STATUS

approved



