[seqfan] Re: Looking for an interpretation
Enrique Pérez
eperezherrero at yahoo.es
Fri Dec 18 20:56:27 CET 2015
Hello,
Differences seems to be:
https://oeis.org/A084964
Regards, Enrique
-----Mensaje original-----
De: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] En nombre de Ron Hardin
Enviado el: viernes, 18 de diciembre de 2015 12:49
Para: Sequence Fanatics Discussion list
Asunto: [seqfan] Re: Looking for an interpretation
a(n)=2*a(n-1)-2*a(n-3)+a(n-4) for n>5, apparently.rhhardin at mindspring.com rhhardin at att.net (either)
From: Peter Luschny <peter.luschny at gmail.com>
To: "seqfan at list.seqfan.eu" <seqfan at list.seqfan.eu>
Sent: Friday, December 18, 2015 5:06 AM
Subject: [seqfan] Looking for an interpretation
Consider the algorithm:
x, y = 1, 2
repeat:
print x
x, y = x + y, x//y + 1
The assignment is simultaneous and x//y means floor(x/y).
This leads to:
1, 3, 4, 8, 10, 15, 18, 24, 28, 35, 40, 48, 54, 63, 70, ...
Can you contribute a combinatorial interpretation of this sequence?
Cheers, Peter
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