Or if it were 1235321 it would be an ascending/descending Fibonacci sequence ladder note. 8-)

Ahh!... but wouldn't a Fibonacci radar be:

1123211?

Woops, actually, according to Wiki (see image), it should be:

*0112110* Hey I just learned something!

AND! (for us math geeks), there are only FIVE possible fibonacci serial numbers in our current 7 digit notes.

f-31 :

**1346269** = 557 x 2417 (the factors)

f-32 :

**2178309** = 3 x 7 x 47 x 2207

f-33 :

**3524578** = 2 x 89 x 19801

f-34 :

**5702887** = 1597 x 3571

f-35 :

**9227465** = 5 x 13 x 141961

Okay, now I have yet another wacky set to try to put together!

http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibtable.html#300[attachment deleted by admin]