1,1

A084440(a(n))>1; subset of A084441.

No more terms < 10^14. - David Wasserman (wasserma(AT)spawar.navy.mil), Dec 28 2004

prime(32) = 131 = 1+5+5^3 = 1+2+2^7, therefore 131 is a term.

Cf. A102070.

Sequence in context: A027707 A046861 A078917 this_sequence A053711 A043110 A043890

Adjacent sequences: A084440 A084441 A084442 this_sequence A084444 A084445 A084446

nonn,more

Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 26 2003