1,2

Table of n, a(n) for n=1..63.

313,11311,131113 etc. are all primes.

Cf. A090261.

Sequence in context: A119231 A177335 A031449 * A179522 A020635 A175820

Adjacent sequences: A090257 A090258 A090259 * A090261 A090262 A090263

base,nonn

Amarnath Murthy, Nov 28 2003

More terms from David Wasserman, Apr 22 2004

approved