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 A161835 #12 Aug 27 2022 20:04:59 %S A161835 25,30,35,40,45,50,55,65,75,85,95,115,125,145,155,185,205,215,235,265, %T A161835 295,305,335,355,365,395,415,445,485,505,515,535,545,565,635,655,685, %U A161835 695,745,755,785,815,835,865,895,905,955,965,985,995,1055,1115,1135,1145,1165,1195 %N A161835 Numbers k whose largest divisor <= sqrt(k) is 5. %C A161835 See A161344 for more information. - _Omar E. Pol_, Jul 05 2009 %F A161835 Numbers k such that A033676(k)=5. - _Omar E. Pol_, Jul 05 2009 %t A161835 Select[Range[1, 1000], Function[m, Max[Select[Divisors[m], # <= Sqrt[m] &]] == 4]] (* _Ashton Baker_, Nov 03 2013 *) %o A161835 (PARI) is(n)=divisors(n)[(numdiv(n)+1)\2]==5 \\ - _M. F. Hasler_, Nov 03 2013 %Y A161835 Cf. A033676, A008578, A161344, A161345, A161424, A161835, A162526, A162527, A162528, A162529, A162530, A162531, A162532. %K A161835 easy,nonn %O A161835 1,1 %A A161835 _Omar E. Pol_, Jun 20 2009 %E A161835 Definition and more terms added by _R. J. Mathar_, Jun 28 2009