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A050680 Positions of 3's in A050677. +0
1
5, 10, 12, 13, 31, 38, 43, 49, 51, 55, 59, 60 (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, A046462.

Adjacent sequences: A050677 A050678 A050679 this_sequence A050681 A050682 A050683

Sequence in context: A007527 A033894 A033649 this_sequence A098670 A162821 A059324

KEYWORD

nonn,base,hard

AUTHOR

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

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Last modified November 8 07:45 EST 2009. Contains 166143 sequences.


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