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 A080386 #21 Sep 10 2019 03:02:42 %S A080386 25,37,169,199,201,241,397,433,547,685,865,1045,1081,1585,1657,1891, %T A080386 1951,1969,2071,2143,2647,2901,3011,3025,3097,3151,3251,3421,3511, %U A080386 3727,4105,4213,4453,4771,4885,5581,5857,6019,6031,6265,6397,6967,7345,7615,7831,8425,8857,8929 %N A080386 Numbers k such that there are exactly 8 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 8. %H A080386 Vaclav Kotesovec, <a href="/A080386/b080386.txt">Table of n, a(n) for n = 1..260</a> %e A080386 For n=25, the central binomial coefficient (C(25,12) = 5200300) is divisible by C(25,0), C(25,1), C(25,3), C(25,12), C(25,13), C(25,22), C(25,24), and C(25,25). %Y A080386 Cf. A327430, A080384, A080385, A327431, A080387. %Y A080386 Cf. A001405, A057977. %K A080386 nonn %O A080386 1,1 %A A080386 _Labos Elemer_, Mar 12 2003 %E A080386 More terms from _Michel Marcus_, Aug 23 2019