Table of n, a(n) for n=1..6.
2332 is derived by concatenating the first two primes (2 and 3) in the "forward" order and the last two digits are the same primes in the "reverse" order.
Sequence in context: A069221 A069222 A117990 * A078278 A078275 A200805
Adjacent sequences: A098127 A098128 A098129 * A098131 A098132 A098133
Parthasarathy Nambi, Sep 27 2004