Help! Math Riddle

The answer is 4181! It's the Fibbinachi sequence. The first number in the sequence is 1, the 6th is 8, and the 10th, is 55.
 
I would suggest giving the forum more than 76 minutes to respond, I would give at least 24 hours.

Also, perhaps a bit nitpicky, but it's the Fibonacci sequence. Can you compute \(\displaystyle F_{-4}\)? :mrgreen:
 
ThatGTI said:
]b] > > > [/b]6=8 10=55 1=1 19=X < < <
These are not equal so don't use equal signs.

What is X? X is greater than 19
Click to expand...

ThatGTI,

in the future what you should do is present it something like this, as well as put
the lower-numbered values before the larger ones:

The 1st term is 1. The 6th term is 8. The 10th term is 55. The 19th term = X.


What is X?


---------------------------


Or:


1 ---> 1

6 ---> 8

10 ---> 55

19 ---> X


What is X?



And there are an infinite number of possible values for X.
One way you can narrow down the choices is to say at the outset that
it is the Fibonacci sequence.
 
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