# Greetings from The On-Line Encyclopedia of Integer Sequences! http://oeis.org/ Search: id:a178329 Showing 1-1 of 1 %I A178329 #20 Aug 17 2020 11:00:55 %S A178329 8,5569,34351 %N A178329 Numbers n such that reversal(n^n) is prime. %C A178329 The numbers corresponding to the second and third terms are probable primes. %C A178329 a(3) > 26580. - _Giovanni Resta_, Mar 01 2013 %C A178329 a(4) > 43200 according to Thomas Ritschel (2013). - _M. F. Hasler_, Oct 31 2014 %H A178329 Carlos Rivera, Puzzle 653, published in (Aug./Sep.?) 2012, answers added between March and October 2013; The Prime Puzzles and Problems Connection. %Y A178329 Cf. A004086. %K A178329 nonn,base,bref,hard,more %O A178329 1,1 %A A178329 _Farideh Firoozbakht_, Jun 16 2010 %E A178329 a(3) from Thomas Ritschel (2013), added by _Arkadiusz Wesolowski_, Oct 30 2014 # Content is available under The OEIS End-User License Agreement: http://oeis.org/LICENSE