cp's OEIS Frontend

A055958 a(n) = n + reversal of base 9 digits of n (written in base 10).

%I A055958 #18 Aug 08 2024 06:39:17
%S A055958 0,2,4,6,8,10,12,14,16,10,20,30,40,50,60,70,80,90,20,30,40,50,60,70,
%T A055958 80,90,100,30,40,50,60,70,80,90,100,110,40,50,60,70,80,90,100,110,120,
%U A055958 50,60,70,80,90,100,110,120,130,60,70,80,90,100,110,120,130,140,70,80,90
%N A055958 a(n) = n + reversal of base 9 digits of n (written in base 10).
%C A055958 If n has an even number of digits in base 9 then a(n) is a multiple of 10.
%H A055958 Seiichi Manyama, <a href="/A055958/b055958.txt">Table of n, a(n) for n = 0..10000</a>
%F A055958 a(n) = n + A030108(n).
%t A055958 Table[n+FromDigits[Reverse[IntegerDigits[n,9]],9],{n,0,70}] (* _Harvey P. Dale_, Sep 03 2013 *)
%o A055958 (PARI) a(n) = n + fromdigits(Vecrev(digits(n, 9)), 9); \\ _Michel Marcus_, Sep 27 2018
%Y A055958 Cf. A030108, A056964.
%K A055958 nonn,base,look
%O A055958 0,2
%A A055958 _Henry Bottomley_, Jul 18 2000