A134113 - OEIS

%I #12 Mar 27 2026 21:57:20

%S 1,7,94,343,1042,70861,345328,946711,1084675,70635304,942574282,

%T 3476237791,10278214831,70401098869,948270322876,3499051657474,

%U 10696503923233,702789315036232,9440197953148261,10021679266229797

%N Powers of 7 written backwards and sorted.

%t Sort[FromDigits[Reverse[IntegerDigits[#]]]&/@(7^Range[0,20])] (* _Harvey P. Dale_, Dec 23 2013 *)

%o (PARI) A134113_first(n, p=7, L=log(10)/log(p))=vecsort([A004086(p^k)|k<-[0..n\/L*L\1]])[1..n] \\ _M. F. Hasler_, Mar 27 2026

%Y Cf. A000420 (powers of 7), A004086 (digit reversal).

%K base,easy,nonn

%O 1,2

%A _Jonathan Vos Post_, Oct 08 2007