[seqfan] More fractal trees - and erasures
Eric Angelini
Eric.Angelini at kntv.be
Sun Jan 4 13:00:24 CET 2015
Hello SeqFans,
Build this easy tree:
0
1,0,2
3,1,0,2,4
5,3,1,0,2,4,6
7,5,3,1,0,2,4,6,8
9,7,5,3,1,0,2,4,6,8,10
...
Get S by concatenating the top row to
the next one, then to the next one, then
to the next one, etc.
S=0,1,0,2,3,1,0,2,4,5,3,1,0,2,4,6,7,5,3,1,0,2,4,6,8,9,7,5,...
If you erase in S all pairs of consecutive
integers, you'll get back S.
Best,
É.
More information about the SeqFan
mailing list