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%I #10 Feb 25 2013 21:38:17
%S 1,4,8,9,16,49,81,169
%N Right-truncatable perfect powers: every prefix is perfect power.
%C Also right-truncatable powerful numbers: every prefix is powerful number. This sequence is finite with 8 terms.
%Y Cf. A001597 (perfect powers), A001694 (powerful numbers).
%K nonn,base,fini,full
%O 1,2
%A _Jaroslav Krizek_, Jan 06 2012
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