The 12 days of Pascal’s triangular Christmas

One of the most magical aspects of mathematics is the ability for complex and intricate structures to emerge from the simplest of rules. Few mathematical objects are simpler to create – and few weave such a variety of intricate patterns – as Pascal’s marvelous triangle.

by https://theconversation.com/the-12-days-of-pascals-triangular-christmas-21479 Also see A Triangle Calculator