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 A276892 #5 Sep 22 2016 07:30:45 %S A276892 1,2,20,878,79682,12043772,2716968332,853336081124,355520118746132, %T A276892 189580735777428836,125874638274228457172,101804159684084842005380, %U A276892 98514573603328714169588852,112376135259125932230989633060,149216698787792363945310009639572 %N A276892 Number of ordered set partitions of [2n] where k=n is minimal such that for each block b the smallest integer interval containing b has at most k elements. %F A276892 a(n) = A276891(2n,n). %Y A276892 Cf. A276728, A276891. %K A276892 nonn %O A276892 0,2 %A A276892 _Alois P. Heinz_, Sep 21 2016