Funny pictures of sexps

[bo198214]

Update: Ach, I was looking at your graphs upside down! I always neglect the negation when using the root test, so I look at the reciprocal of the apparent radius of convergence. So where you graphs shoot up right at the end, mine would have shot down. So perhaps I'm misinterpreting your results.

Ya I was thinking which to take and decided to take the one that would indicate the radius of converges and not its reciprocal.