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A050681
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Positions of 4's in A050677.
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0
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OFFSET
| 0,1
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REFERENCES
| M. Fleuren, Smarandache Factors and Reverse Factors, Smarandache Notions Journal, 10 (No. 1-2-3, Spring 1999), 5-38.
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LINKS
| P. De Geest, Reversed Smarandache Concatenated Numbers, Prime factors from n down to 1
M. L. Perez et al., eds., Smarandache Notions Journal
C. Rivera, Primes by Listing
M. Fleuren, Factors and primes of Smarandache sequences.
M. Fleuren, Smarandache Factors and Reverse factors
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CROSSREFS
| Cf. A000422, A050677, A046463.
Sequence in context: A178838 A082772 A103338 * A179186 A192045 A084021
Adjacent sequences: A050678 A050679 A050680 * A050682 A050683 A050684
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KEYWORD
| nonn,base,hard
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AUTHOR
| Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.
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