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 A050775 #9 Aug 18 2021 23:46:12 %S A050775 16,36,74,80,81,86,115,119,121,123,141,215,266,276,360,451,465,572, %T A050775 779,868,1548,1624,1674,1763,1917,1925,2196,2331,2368,2730,3108,3306, %U A050775 3430,3816,4452,4575,5110,5312,5412,6273,6324,6820,7632,8772,9027,9204,9435 %N A050775 Iterated procedure 'composite k added to sum of its prime factors reaches a prime' yields 8 skipped primes. %e A050775 a(6)=86 + (2+43) = ending prime 131. Between 86 and 131 one finds 8 primes 89, 97, 101, 103, 107, 109, 113 and 127. %Y A050775 Cf. A050703, A050710. %K A050775 nonn %O A050775 1,1 %A A050775 _Patrick De Geest_, Sep 15 1999 %E A050775 Offset corrected by _Sean A. Irvine_, Aug 18 2021