1,1
Sergio Silva, Teste Numerico. [link is broken]
a(3)=78125 because 5 is the 3rd prime, 7 is the 4th prime and 5^7=78125.
Cf. A051674.
Sequence in context: A115613 A085524 A062481 * A090241 A029751 A035036
Adjacent sequences: A053086 A053087 A053088 * A053090 A053091 A053092
nonn,easy
Enoch Haga (Enokh(AT)comcast.net), Mar 18 2000