|   | 1 |  initial version  | 
plot is suited to the plotting of functions of a real variable, a priori defined in the plotting range.Your function is a function of a discrete variable (a suite), i. e. defined nowhere on the plotting range except of a set of null measure. For which plot_list is the "right" solution.
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.