HP-80 Unexplained Key Sequence?

[Massimo Gnerucci]

(06-21-2014 07:37 PM)Max Stone Wrote:  Can anyone tell me why the HP-80 gives this unusual, unexplained sequence when you keep pressing Shift then the Decimal Point, giving you the following sequence (from an empty stack):

0.
1.
2.
3.
5.
11.
26.
66.
227.
1064.
6257.
62979.
1251797.
41590664.
4048283972.

Kind regards, MAX

We've already been here... :)