1,3
a(7) = 4913 = 17^3 < 5040=7! There is no perfect power between 4913 and 5040.
Cf. A074188.
Cf. A055226. It seems that a(n)=A055226(n)^2 for n>7.
Sequence in context: A121142 A087296 A065731 this_sequence A111883 A094637 A136793
Adjacent sequences: A074184 A074185 A074186 this_sequence A074188 A074189 A074190
nonn
Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Aug 31 2002
More terms from Hugo Pfoertner (hugo(AT)pfoertner.org), Jul 20 2004
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