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 A345628 #11 Jun 24 2021 19:33:49 %S A345628 1,1,0,6,1,1,2,6,0,2,1,1,0,10,0,0,0,4,1,1,0,10,4,0,0,0,0,4,1,1,2,14,0, %T A345628 2,0,0,0,0,0,4,1,1,0,14,0,0,6,0,0,0,0,0,0,6,1,1,0,18,0,0,0,4,0,0,0,0, %U A345628 0,0,0,8,1,1,2,18,0,2,0,0,6,0,0,0,0,0,0 %N A345628 Irregular triangle T(n,k) read by rows of the number of elements of order k in the dicyclic group Dic(n) for n>=2. %C A345628 Dic(1) is omitted since it is degenerate. %C A345628 Row n has 2*n entries (k=1..2*n). %H A345628 Sean A. Irvine, <a href="/A345628/b345628.txt">Rows n=2..100 flattened</a> %H A345628 Sean A. Irvine, <a href="https://github.com/archmageirvine/joeis/blob/master/src/irvine/oeis/a345/A345628.java">Java program</a> (github) %H A345628 Wikipedia, <a href="https://en.wikipedia.org/wiki/Dicyclic_group">Dicyclic group</a> %e A345628 Triangle begins: %e A345628 1, 1, 0, 6; %e A345628 1, 1, 2, 6, 0, 2; %e A345628 1, 1, 0, 1, 0, 0, 0, 4; %e A345628 1, 1, 0, 10, 4, 0, 0, 0, 0, 4; %e A345628 ... %Y A345628 Cf. A054522, A057731. %K A345628 nonn,tabf %O A345628 2,4 %A A345628 _Sean A. Irvine_, Jun 22 2021