%I A071582
%S A071582 1,4,61,46,652,4201,6904,48361,63556,441262,6758401,4034914,61277761,
%T A071582 46880176,654534862,4281473701,6927694924,48196897171,63767491786,
%U A071582 449609778472,6777261159901,4011156408934,61444068129571
%N A071582 Powers of 4 written backwards.
%o A071582 (PARI) for(i=1,50,n=4^i; s=ceil(log(n)/log(10)); print1(sum(i=0,s,10^(s-i-1)*(floor(n/
               10^i)-10*floor(n/10^(i+1)))),","))
%Y A071582 Sequence in context: A012567 A132627 A136385 this_sequence A158300 A129452 
               A131014
%Y A071582 Adjacent sequences: A071579 A071580 A071581 this_sequence A071583 A071584 
               A071585
%K A071582 easy,nonn,base
%O A071582 0,2
%A A071582 Benoit Cloitre (benoit7848c(AT)orange.fr), Jun 01 2002