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A050679 Positions of 2's in A050677. +0
2
2, 3, 4, 6, 7, 11 (list; graph; listen)
OFFSET

0,1

REFERENCES

M. Fleuren, Smarandache Factors and Reverse Factors, Smarandache Notions Journal, 10 (No. 1-2-3, Spring 1999), 5-38.

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

CROSSREFS

Cf. A000422, A050677, A046461.

Sequence in context: A032480 A163771 A117851 this_sequence A158806 A018723 A088412

Adjacent sequences: A050676 A050677 A050678 this_sequence A050680 A050681 A050682

KEYWORD

nonn,base,hard

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1999.

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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