This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A319808 #17 Aug 07 2024 16:27:29
%S A319808 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 A319808 36,45,54,63,72,81,90,36,45,54,63,72,81,90,99,45,54,63,72,81,90,99,
%U A319808 108,54,63,72,81,90,99,108,117,63,72,81,90,99,108,117,126,65,81,146,211
%N A319808 a(n) = A319725(n) + A319656(n).
%C A319808 This sequence is different from A055956.
%H A319808 Seiichi Manyama, <a href="/A319808/b319808.txt">Table of n, a(n) for n = 0..4095</a>
%t A319808 Table[FromDigits[Reverse[#], 8] + FromDigits[#, 8] & [Sort[IntegerDigits[n, 8]]], {n, 0, 100}] (* _Paolo Xausa_, Aug 07 2024 *)
%o A319808 (PARI) a(n) = my(nd=digits(n, 8)); fromdigits(vecsort(nd), 8) + fromdigits(vecsort(nd,,4), 8); \\ _Michel Marcus_, Sep 28 2018
%Y A319808 Base b: A319785 (b=2), A319803 (b=3), A319804 (b=4), A319805 (b=5), A319806 (b=6), A319807 (b=7), this sequence (b=8), A319747 (b=9), A052008 (b=10).
%Y A319808 Cf. A055956, A319656, A319725.
%K A319808 nonn,base,look
%O A319808 0,2
%A A319808 _Seiichi Manyama_, Sep 28 2018