1,1

a(1) = 3 because there are 3 powers with 1 digit: 2^2, 2^3 and 3^2.

Sequence in context: A054610 A117655 A081423 this_sequence A073372 A026573 A097339

Adjacent sequences: A060295 A060296 A060297 this_sequence A060299 A060300 A060301

nonn,base

Michel ten Voorde (seqfan(AT)tenvoorde.org) Apr 10 2001