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 A050776 #9 Aug 18 2021 23:46:22 %S A050776 30,42,99,174,188,212,216,295,329,348,371,620,627,629,649,851,901,925, %T A050776 957,1081,1189,1248,1353,1363,1696,1830,1880,2133,2173,2491,2664,3660, %U A050776 3843,4020,4420,5056,5688,6327,6700,7540,7626,7808,7888,7900,8295,8778 %N A050776 Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 9 skipped primes. %e A050776 a(3)=99 + (3+3+11) = 116 + (2+2+29) = ending prime 149. Between 99 and 149 one finds 9 primes 101, 103, 107, 109, 113, 127, 131, 137 and 139. %Y A050776 Cf. A050703, A050710. %K A050776 nonn %O A050776 1,1 %A A050776 _Patrick De Geest_, Sep 15 1999 %E A050776 Offset corrected by _Sean A. Irvine_, Aug 18 2021