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 A334376 #5 Apr 26 2020 09:23:23 %S A334376 9,3,9,6,9,9,12,3,6,9,7,8,9,12,9,10,15,18,3,9,11,6,12,13,9,14,15,9,10, %T A334376 12,21,6,11,9,12,15,13,7,12,14,9,15,18,16,9,17,15,18,9,10,12,18,18,21, %U A334376 9,11,12,18,24,15,18,27,3,8,9,10,15,18,3,7,9,12,16 %N A334376 a(n) is the sum of digits of the n-th Moran number (A001101). %F A334376 a(n) = A007953(A001101(n)). %e A334376 For n = 42: %e A334376 - A001101(42) = 555, %e A334376 - A007953(555) = 15, %e A334376 - hence a(42) = 15. %o A334376 (PARI) for (n=1, 1168, if (n%(s=sumdigits(n))==0 && isprime(n/s), print1 (s", "))) %Y A334376 Cf. A001101, A007953, A334375. %K A334376 nonn,base %O A334376 1,1 %A A334376 _Rémy Sigrist_, Apr 25 2020