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MERE BAGATELLE
Starting at brick number one, and always moving forwards, how many different paths can you take to reach the brick at the bottom?
The answer is on the brick : 924
This design is a section of Pascal's triangle turned through 45 degrees. If you turn it so that the number 924 is at the bottom then the number on each "brick" is the sum of the two numbers above it.
The mathematics of this design is related to the old
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Mere Bagatelle
RELATED DESIGNS
NUMBER AFGHANS
CONSTRUCTION INFORMATION
Each brick is made separately in filet crochet.
The bricks are stitched or crocheted together.
CROCHET INFORMATION
Mere Bagatelle is made from 49 similar bricks, each in a different colour.
This is an ideal design for using up small amounts of left over
yarn.
Any type of yarn can be used but all the yarns should be of the same thickness to make regular sized bricks.
Mere Bagatelle is a representation of Pascal’s Triangle.
The American mathematician Martin Gardner said:
The pattern is so simple that a 10 year old can write it down, yet it contains such inexhaustable riches and links with so many seemingly unrelated aspects of mathematics, that it is surely one of the most elegant number arrays.
Although this pattern is named after Blaise Pascal (1623 
The diagram shows why it is called a triangle. The afghan design uses only the part shown in red. The numbers in the pattern are generated by adding two adjacent numbers together and writing the total underneath. It could be continued for ever.
The afghan design was inspired by a problem which involves counting the number of different ways it is possible to reach any given stone, starting with the 1 at the top and always moving forwards. The answers are those given in the triangle.
The numbers in the afghan are deliberately made difficult to read so that it is not immediately obvious that the answer is given in the puzzle.












1 
























1 
1 






















1 
2 
1 




















1 
3 
3 
1 


















1 
4 
6 
4 
1 
















1 
5 
10 
10 
5 
1 














1 
6 
15 
20 
15 
6 
1 












1 
7 
21 
35 
35 
21 
7 
1 










1 
8 
28 
56 
70 
56 
28 
8 
1 








1 
9 
36 
84 
126 
126 
84 
36 
9 
1 






1 
10 
45 
120 
210 
252 
210 
120 
45 
10 
1 




1 
11 
55 
165 
330 
462 
462 
330 
165 
55 
11 
1 


1 
12 
66 
220 
495 
792 
924 
792 
495 
220 
66 
12 
1 