HP 38G: Better than Prime for some Sequences using the built in Sequence App

[Gerald H]

Edited 2015-03-07: Removed question mark from title of thread

I post here a challenge:

For

http://oeis.org/search?q=a004001&languag...&go=Search

This works on the 38G:

U1(1)=1
U1(2)=1
U1(N)=U1(U1(N-1))+U1(N-U1(N-1)).

On the Prime & 39gii it refuses to get ticked & is consequently unevaluable.

Should I however be in error I would be very pleased to see a demonstration of how to realize the series on either Prime or 39gii.


I offer a prize of an HP 38G to the first successful solution posted here in this forum.