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 A294024 #3 Oct 21 2017 23:01:57 %S A294024 1,1,5,61,1061,25430,791355,30785899,1455625827,81849519019, %T A294024 5379462393332,407467385577745,35154933887354837,3420720341248634735, %U A294024 372223103372998367607,44962783637401793609530,5990684079499573284887127,875408497263831218021563807 %N A294024 Number of set partitions of [2n] such that the maximal absolute difference between consecutive elements within a block equals n. %F A294024 a(n) = A287213(2n,n). %e A294024 a(2) = 5: 124|3, 134|2, 13|24, 13|2|4, 1|24|3. %Y A294024 Cf. A287213. %K A294024 nonn %O A294024 0,3 %A A294024 _Alois P. Heinz_, Oct 21 2017