0,1

P. De Geest, Normal Smarandache Concatenated Numbers, Prime factors from 1 up to n

C. Rivera, Primes by Listing

M. Fleuren, Smarandache Factors and Reverse factors

Cf. A046460.

Sequence in context: A042621 A042622 A044977 this_sequence A054396 A083274 A067913

Adjacent sequences: A046463 A046464 A046465 this_sequence A046467 A046468 A046469

nonn,hard,base

Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1998.