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 A097915 #10 Apr 28 2019 20:11:07 %S A097915 1,2,2,2,3,4,4,4,4,4,6,2,4,5,8,8,4,6,10,4,3,4,8,8,8,10,2 %N A097915 Number of points in a certain complex manifold associated with the Hilbert modular group of the totally real field Q(sqrt(n)), n squarefree, that arise from isotropy groups of order 3. %H A097915 F. Hirzebruch, <a href="http://dx.doi.org/10.5169/seals-46292">Hilbert modular surfaces</a>, L'Enseignement Math., 19 (1973), 183-281; Ges. Abh. II, 225-323. %H A097915 A. Prestel, <a href="http://gdz.sub.uni-goettingen.de/dms/resolveppn/?PPN=GDZPPN00229978X">Die elliptischen Fixpunkte der Hilbertschen Modulgruppen</a>, Math. Ann., 177 (1968), 181-209. %H A097915 A. Prestel, <a href="http://gdz.sub.uni-goettingen.de/dms/resolveppn/?PPN=GDZPPN002307111">Die Fixpunkte der symmetrischen Hilbertschen Modulgruppe zu einem reell-quadratischen Zahlkörper mit Primzahldiskriminante</a>, Math. Ann., 200 (1973), 123-139. %Y A097915 Cf. A097914, A097916, A097917, A097918. %K A097915 nonn,more %O A097915 1,2 %A A097915 _N. J. A. Sloane_, Sep 04 2004