Star triangle pattern in Python. For example, with a right-angle triangle, the number of stars on any given row is equal to the row you're on. Here's the code for that: for i in range(0,10): for j in ...

Do the sum for metres of one, two, three, four and more and a mathematical pattern emerges. It is Pascal's Triangle, the pyramid of numbers in which the series in the next line is given by adding ...