Table of n, a(n) for n=1..5.
The first term is 1876918496182251795617689 which is a prime and is the reverse concatenation of 17689,17956,18225,18496 and 18769 which are five consecutive square numbers.
Sequence in context: A217422 A095442 A130682 * A104322 A030198 A104267
Adjacent sequences: A104301 A104302 A104303 * A104305 A104306 A104307
Shyam Sunder Gupta, Apr 17 2005