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Powers of 6 written backwards.
2

%I #16 Sep 15 2023 07:51:24

%S 1,6,63,612,6921,6777,65664,639972,6169761,69677001,67166406,

%T 650797263,6332876712,61049606031,69046146387,675489481074,

%U 6547099011282,63744495662961,614866659955101,694010047953906,6792600448516563

%N Powers of 6 written backwards.

%H Seiichi Manyama, <a href="/A071588/b071588.txt">Table of n, a(n) for n = 0..1000</a>

%F a(n) = A004086(A000400(n)).

%t FromDigits[Reverse[IntegerDigits[#]]]&/@(6^Range[0,30]) (* _Harvey P. Dale_, Feb 02 2012 *)

%o (PARI) for(i=1,50,n=5^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 Cf. A000400, A004086, A004094, A004167, A071582, A071583, A071584, A071586, A071587.

%K easy,nonn,base

%O 0,2

%A _Benoit Cloitre_, Jun 01 2002