OFFSET
1,1
COMMENTS
The next term (a(5)) has 93 digits. - Harvey P. Dale, Mar 05 2013
REFERENCES
R. W. Stephan, Factors and Primes in Two Smarandache Sequences, Smarandache Notions Journal, second edition, Vol. 9, No. 1-2, 1998, 5-11.
LINKS
M. Fleuren, Smarandache Concatenated Odds.
Eric Weisstein's World of Mathematics, Consecutive Number Sequences
MATHEMATICA
Select[Table[FromDigits[Flatten[IntegerDigits/@Range[1, 2n+1, 2]]], {n, 40}], PrimeQ] (* Harvey P. Dale, Mar 05 2013 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
N. J. A. Sloane, Charles T. Le (charlestle(AT)yahoo.com)
EXTENSIONS
Edited by Charles R Greathouse IV, Apr 23 2010
STATUS
approved