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A048288
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Number of prime factors of reverse concatenation of numbers from 1 to n.
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0
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0, 2, 2, 2, 3, 2, 2, 4, 5, 3, 2, 3, 3, 4, 6, 4, 7, 10, 3, 5, 4, 5, 4, 5, 6, 9, 9, 5, 7, 8, 3, 6, 5
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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REFERENCES
| Micha Fleuren, "Smarandache Factors and Reverse Factors", in Smarandache Notions Journal, Vol. 10, No. 1-2-3, Spring 1999, pp. 5-38.
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LINKS
| M. L. Perez et al., eds., Smarandache Notions Journal
M. Fleuren, Factors and primes of Smarandache sequences.
M. Fleuren, Smarandache Factors and Reverse factors
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CROSSREFS
| Cf. A046460, A046461, A046468.
Sequence in context: A175778 A099774 A142240 * A050677 A058013 A031356
Adjacent sequences: A048285 A048286 A048287 * A048289 A048290 A048291
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KEYWORD
| nonn,base
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AUTHOR
| Paul Jasper (jasperpaul(AT)hotmail.com)
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