0,1

Next term is greater than 2*10^8.

For k=0,1,...,6 3^3^k + 390410 are prime and 390410 is the smallest number with this property so a(6)=390410.

Cf. A129613, A129615.

Sequence in context: A090753 A091788 A063401 this_sequence A070283 A070282 A051285

Adjacent sequences: A129611 A129612 A129613 this_sequence A129615 A129616 A129617

hard,more,nonn

Farideh Firoozbakht (mymontain(AT)yahoo.com), May 13 2007, Jun 01 2007