15 lines
550 B
Text
15 lines
550 B
Text
A number is an ''attractive number'' if the number of its prime factors (whether distinct or not) is also prime.
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;Example:
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The number '''20''', whose prime decomposition is '''2 × 2 × 5''', is an ''attractive number'' because the number of its prime factors ('''3''') is also prime.
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;Task:
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Show sequence items up to '''120'''.
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;Reference:
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:* The OEIS entry: [[oeis:A063989|A063989: Numbers with a prime number of prime divisors]].
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<br><br>
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