Question

Predict the numbers in the sixth role.

1.)1
2.)1,1
3.)1,2,1
4.)1,3,3,1
5.)1,4,6,4,1
6.)?

Answers

derek
1,10,10,1
Damon
Google "Pascal's Triangle"

This is also called "binomial coefficients"

left and right ends of rows are 1
every element is sum of above to left and right
like 3 = 1+2
and 6 = 3+3
so
1 5 10 10 5 1
Damon
You forgot the threes Derek.
derek
1,5,10,10,5,1
Damon
I mean the fives.
Reiny
have you seen Pascal's triangle ?

http://ptri1.tripod.com/

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