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 A280752 #13 Feb 13 2023 14:45:12 %S A280752 1,1,1,1,1,1,1,3,10,1,1,2,865,71,1,1,5,2630,1427,181,1,1,3,163133, %T A280752 306553,36667,145,1,1,7,3368938,129115655,46958822,43662,4036,1 %N A280752 Numerators of triangle related to enumeration of minimal 2-covers of a labeled n-set. %H A280752 Octavio A. AgustÃn-Aquino, <a href="http://arxiv.org/abs/1602.05279">Archimedes' quadrature of the parabola and minimal covers</a>, arXiv:1602.05279 [math.CO], 2016. %e A280752 Triangle begins: %e A280752 1, %e A280752 1/3, 1/3, %e A280752 1/7, 1/2, 1/7, %e A280752 1/15, 3/5, 10/21, 1/15, %e A280752 1/31, 2/3, 865/651, 71/186, 1/31, %e A280752 1/63, 5/7, 2630/651, 1427/651, 181/651, 1/63, %e A280752 1/127, 3/4, 163133/11811, 306553/15748, 36667/11811, 145/762, 1/127, %e A280752 ... %Y A280752 Cf. A022166, A057963, A280753. %K A280752 nonn,tabl,more %O A280752 1,8 %A A280752 _N. J. A. Sloane_, Jan 15 2017