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 A369930 #6 Feb 08 2024 12:44:50 %S A369930 1,1,1,3,5,16,31,102,213,712,1556,5255,11843,40288,92842,317548, %T A369930 744277,2556376,6072124,20926236,50244660,173634752,420634039, %U A369930 1456967358,3556069395,12341344216,30314970076,105384541314,260295610706,906188676224,2249045501636 %N A369930 Number of achiral noncrossing partitions composed of n blocks of size 4. %H A369930 Andrew Howroyd, <a href="/A369930/b369930.txt">Table of n, a(n) for n = 0..1000</a> %Y A369930 Column 4 of A369929. %K A369930 nonn %O A369930 0,4 %A A369930 _Andrew Howroyd_, Feb 08 2024