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 A050708 #13 Oct 18 2019 17:00:27 %S A050708 32,62,63,64,69,77,98,100,102,105,110,117,171,182,186,190,195,200,217, %T A050708 230,234,240,246,248,270,324,354,381,388,392,400,405,410,430,436,438, %U A050708 444,455,456,474,481,482,483,490,528,540,568,576,582,584,598,605,625 %N A050708 Composites c that reach a prime after 4 iterations of c-> c+sum of prime factors of c. %e A050708 182 is a term: %e A050708 Iteration 1: 182 = 2*7*13 so 182 + (2+7+13) = 182 + 22 = 204 and composite. %e A050708 Iteration 2: 204 = 2*2*3*17 so 204 + (2+2+3+17) = 204 + 24 = 228 and composite. %e A050708 Iteration 3: 228 = 2*2*3*19 so 228 + (2+2+3+19) = 228 + 26 = 254 and composite. %e A050708 Iteration 4: 254 = 2*127 so 254 + (2+127) = 254 + 129 = 383 and prime. %Y A050708 Cf. A050703, A050704, A050705, A050706, A050707, A050709, A050710. %K A050708 nonn %O A050708 1,1 %A A050708 _Patrick De Geest_, Aug 15 1999 %E A050708 Name edited by _Michel Marcus_, Oct 18 2019