%I #10 Jan 27 2016 22:01:43
%S 0,1728,-3375,8000,-32768,54000,287496,-884736,-12288000,16581375,
%T -884736000,-147197952000,-262537412640768000
%N j-invariants for orders of class number 1.
%C 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 H. Cohn, Introduction to the Construction of Class Fields, Cambridge; p. 183.
%D D. A. Cox, Primes of the form x^2+ny^2, Wiley, p. 261.
%Y See A267195 for (essentially) the cube roots of these numbers.
%Y See A133675 (times -1) for the corresponding discriminants.
%K sign,fini,full
%O 0,2
%A _N. J. A. Sloane_.