Amazing Number Facts No

No 14

The factors of the central numbers in Pascal's Triangle follow a pattern:
1 = 1 x 1
2 = 2 x 1
6 = 3 x 2
20 = 4 x 5
70 = 5 x 14
etc
The numbers in the sequence 1, 1, 2, 5, 14 ... are called the Catalan Numbers.
What have they got to do with the Bubbles Investigation ?
Why don't you try the investigation to find out?!!
If you want to know why Catalan Numbers are important try:
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