pascal's triangle

this week we have been working on pascals triangle there are four patterns see if you can find                                         
                               GO DOWN GO DOWN GO DOWN GO DOWN




how to find the four patterns (for people who don't wanna try)
 the first one is that the number in each row double up like 1,2,4,8,16,32,64 and so on
secondly the odd numbers are shaded and they form a triangle's
see if you can find the rest good bye