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 A080385 #20 Sep 10 2019 03:02:09 %S A080385 12,30,56,84,90,132,154,182,220,252,280,306,312,340,374,380,408,418, %T A080385 440,456,462,476,532,552,598,616,624,630,644,650,660,690,756,828,840, %U A080385 858,870,880,884,900,918,936,952,966,986,992,1020,1054,1102,1116,1140,1160 %N A080385 Numbers k such that there are exactly 7 numbers j for which binomial(k, floor(k/2)) / binomial(k,j) is an integer, i.e., A080383(k) = 7. %H A080385 Vaclav Kotesovec, <a href="/A080385/b080385.txt">Table of n, a(n) for n = 1..4963</a> %e A080385 For n=12, the central binomial coefficient (C(12,6) = 924) is divisible by C(12,0), C(12,1), C(12,2), C(12,6), C(12,10), C(12,11), and C(12,12). %Y A080385 Cf. A327430, A080384, A080386, A327431, A080387. %Y A080385 Cf. A001405, A057977. %K A080385 nonn %O A080385 1,1 %A A080385 _Labos Elemer_, Mar 12 2003 %E A080385 More terms from _Vaclav Kotesovec_, Sep 06 2019