[seqfan] Recaman's transform of the odd numbers

Eric Angelini Eric.Angelini at kntv.be
Tue Mar 6 18:44:06 CET 2012


Hello SeqFans,
I'm having troubles with https://oeis.org/A128204

0, 1, 4, 9, 2, 11, 22, 35, 20, 3, 22, 43, 66, 41, 14, 43, ...
I see two times "22" and two times "43" here. Is it allowed?

Shouldn't the sequence start:

0, 1, 4, 9, 2, 11, 22, 35, 20, 37, ... with a new definition?
(like: erase the last term leading to a contradiction and try 
adding instead of subtracting? Such a term would be "3", in
the above sequence).

----------

This new definition would be useful to compute a Recaman's 
variation I don't see in the database -- the "Recaman's 
transform of the even numbers":

1 3 7 13 5  15  27  41  25  43  23  45  21  47  19  49 (and not 11)
 2 4 6  8 10  12  14  16  18  20  22  24  26  28  30  32 ...

Best,
É.




More information about the SeqFan mailing list