T-shirt for the math. lovers
Colour Navy
Size : Adult .L.

.....In the Fibonnaci sequence each term is the sum of the two terms before it:
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144...
Where do the even numbers come in the sequence?
Is there a pattern? Why?
Which Fibonnaci numbers are divisible by 3?
Prove general results for the occurrence of even Fibonnaci numbers in the sequence and for the occurrence of multiples of 3.......