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 A032354 #12 Jul 08 2025 19:36:06 %S A032354 0,1728,-3375,8000,-32768,54000,287496,-884736,-12288000,16581375, %T A032354 -884736000,-147197952000,-262537412640768000 %N A032354 j-invariants for orders of class number 1. %C A032354 This sequence may also be written as [0, 12^3, -15^3, 20^3, -32^3, 2*30^3, 66^3, -96^3, -3*160^3, 255^3, -960^3, -5280^3, -640320^3]. Compare A267195. - _N. J. A. Sloane_, Jan 27 2016 %D A032354 H. Cohn, Introduction to the Construction of Class Fields, Cambridge; p. 183. %D A032354 D. A. Cox, Primes of the form x^2+ny^2, Wiley, p. 261. %Y A032354 See A267195 for (essentially) the cube roots of these numbers. %Y A032354 See A133675 (times -1) for the corresponding discriminants. %K A032354 sign,fini,full %O A032354 0,2 %A A032354 _N. J. A. Sloane_