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 A165339 #6 Oct 13 2018 12:46:34 %S A165339 49,94,199,337,373,379,397,409,478,487,490,733,739,748,784,793,847, %T A165339 874,904,919,937,940,973,991,1099,1129,1147,1174,1192,1219,1237,1273, %U A165339 1291,1327,1339,1369,1372,1393,1396,1399,1417,1459,1468,1471,1486,1495,1549 %N A165339 Numbers that eventually reach the cycle 919-1459 under "x -> sum of cubes of digits of x" (see A055012). %C A165339 A165330(a(n)) = 919; %C A165339 Subsequence of A165336. %e A165339 a(1)=49: 49 -> 4^3+9^3=793 -> 7^3+9^3+3^3=1099 -> 1+0+2*9^3=1459 -> 919 -> 1459 ... . %Y A165339 Cf. A154820, A154877, A165330, A165336. %K A165339 base,nonn %O A165339 1,1 %A A165339 _Reinhard Zumkeller_, Sep 17 2009