On October 09 2007 12:27 JeeJee wrote:
^
i found that too, but the questions didn't match?
the second sequence you posted is a fake though (the one with 2.1 in it ) according to a bit of searching
here's a fun one
1, 2, 3, 4, 9, 8, 15, 14, 5, 6 ?
took me longer than the morris sequence =/
^
i found that too, but the questions didn't match?
the second sequence you posted is a fake though (the one with 2.1 in it ) according to a bit of searching
here's a fun one
1, 2, 3, 4, 9, 8, 15, 14, 5, 6 ?
took me longer than the morris sequence =/
a(n) = if n<=3 then n else (smallest number not occurring earlier, having at least one common factor with its pre-predecessor, but none with its predecessor).
On October 09 2007 15:08 geometryb wrote:
i got owned by this one:
14, 18, 23, 28, 34, 42, 50, 59, _, _, _....
i got owned by this one:
14, 18, 23, 28, 34, 42, 50, 59, _, _, _....
These are the numbered stops for the #9 train, as of Feb. 2000
Behold the power of http://www.research.att.com/~njas/sequences/ :D