Re: how to iterate
- To: mathgroup at smc.vnet.net
- Subject: [mg65976] Re: how to iterate
- From: "Richard" <rkausch at free.fr>
- Date: Tue, 25 Apr 2006 05:19:04 -0400 (EDT)
- References: <e2i987$9fc$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hello Valentino You don't need to list the values of your sequence f(n) .It is periodic: f[1] = 1; f[2] = 2; f[3] = 3; f[n_] := (f[n - 1] + f[n - 2] + 1)/f[n - 3]. This gives f(9)=1;f(10)=2; f(11)=3 and then the period is given by f(i) for i=1,...8. Was that the real problem? Richard Kausch Paris (F)