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Search: id:A108728
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| A108728 |
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Number of distinct prime divisors of concatenated even numbers. |
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+0
1
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OFFSET
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0,2
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EXAMPLE
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Number of distinct prime divisors of 2 is 1 - which is the first term.
Number of distinct prime divisors of 24 is 2 - which is the second term.
Number of distinct prime divisors of 246 is 3 - which is the third term.
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CROSSREFS
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Sequence in context: A007967 A054494 A112764 this_sequence A049805 A104887 A064886
Adjacent sequences: A108725 A108726 A108727 this_sequence A108729 A108730 A108731
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KEYWORD
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nonn
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AUTHOR
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Parthasarathy Nambi (PachaNambi(AT)yahoo.com), Jun 21 2005
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