|
Search: id:A046464
|
|
|
| A046464 |
|
Concatenation of numbers from 1 to a(n) has exactly 5 prime factors, with multiplicity. |
|
+0
2
|
| |
|
|
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, Normal Smarandache Concatenated Numbers, Prime factors from 1 up to n
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. A007908, A046460, A050682.
Adjacent sequences: A046461 A046462 A046463 this_sequence A046465 A046466 A046467
Sequence in context: A118066 A044060 A121283 this_sequence A022390 A041831 A041122
|
|
KEYWORD
|
nonn,hard,base
|
|
AUTHOR
|
Patrick De Geest (pdg(AT)worldofnumbers.com), Aug 15 1998.
|
|
|
Search completed in 0.002 seconds
|
