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Ingy döt Net 2023-07-01 11:58:00 -04:00
parent 7387c8f97b
commit cb5bb5e222
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Task/Duffinian-numbers/Sidef/duffinian-numbers.sidef Normal file
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func is_duffinian(n) {
n.is_composite && n.is_coprime(n.sigma)
}
say "First 50 Duffinian numbers:"
say 50.by(is_duffinian)
say "\nFirst 15 Duffinian triplets:"
15.by{|n| ^3 -> all {|k| is_duffinian(n+k) } }.each {|n|
printf("(%s, %s, %s)\n", n, n+1, n+2)
}