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n + reversal of base 8 digits of n (written in base 10).
3

%I #10 Aug 08 2024 06:37:08

%S 0,2,4,6,8,10,12,14,9,18,27,36,45,54,63,72,18,27,36,45,54,63,72,81,27,

%T 36,45,54,63,72,81,90,36,45,54,63,72,81,90,99,45,54,63,72,81,90,99,

%U 108,54,63,72,81,90,99,108,117,63,72,81,90,99,108,117,126,65,130,195,260

%N n + reversal of base 8 digits of n (written in base 10).

%C If n has an even number of digits in base 8 then a(n) is a multiple of 9.

%H Seiichi Manyama, <a href="/A055956/b055956.txt">Table of n, a(n) for n = 0..10000</a>

%F a(n) = n + A030107(n).

%t Table[n + IntegerReverse[n, 8], {n, 0, 100}] (* _Paolo Xausa_, Aug 08 2024 *)

%Y Cf. A030107, A056964.

%K base,nonn

%O 0,2

%A _Henry Bottomley_, Jul 18 2000