![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Gould_sawtooth.svg/640px-Gould_sawtooth.svg.png&w=640&q=50)
Gould's sequence
Integer sequence / From Wikipedia, the free encyclopedia
Gould's sequence is an integer sequence named after Henry W. Gould that counts how many odd numbers are in each row of Pascal's triangle. It consists only of powers of two, and begins:[1][2]
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/c/ca/Pascal_triangle_small.png/320px-Pascal_triangle_small.png)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/fd/Gould_sawtooth.svg/320px-Gould_sawtooth.svg.png)
For instance, the sixth number in the sequence is 4, because there are four odd numbers in the sixth row of Pascal's triangle (the four bold numbers in the sequence 1, 5, 10, 10, 5, 1). Gould's sequence is also a fractal sequence.