Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".
Table of n, a(n) for n=1..63.
313,11311,131113 etc. are all primes.
Sequence in context: A119231 A177335 A031449 * A179522 A020635 A175820
Adjacent sequences: A090257 A090258 A090259 * A090261 A090262 A090263
Amarnath Murthy, Nov 28 2003
More terms from David Wasserman, Apr 22 2004