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 A135100 #12 Mar 23 2025 18:41:18 %S A135100 1,3,4,15,26,2573,17226,19786,22083,58133,67693,223657,376460,464713, %T A135100 497068,2621204,4553376,6000136,7671158,13975944,14074903,52731198, %U A135100 82594577 %N A135100 Numbers which divide their digital sumorial (see A131383). %e A135100 a(5)=26, since 26 divides its digital sumorial, which is A131383(26)=182. %o A135100 (PARI) a=1;for(n=2,10^6,if(a%(n-1)==0,print1(n-1","));x=divisors(n);L=numdiv(n);a+=n; for(i=2,L-1,d=x[i];k=n;while(k%d==0,a-=d-1;k\=d))) \\ _Robert Gerbicz_, May 09 2008 %Y A135100 Cf. A007953, A054899, A131383, A131451, A133620, A133900, A134599. %K A135100 nonn,base,more %O A135100 1,2 %A A135100 _Hieronymus Fischer_, Dec 24 2007 %E A135100 a(12)-a(15) from _Robert Gerbicz_, May 09 2008 %E A135100 a(16)-a(23) from _Hieronymus Fischer_, Jul 31 2008