I have a series of rows that I need to auto fill in a certain way - It would basically be the same thing as filling a series like 1,2,3,4,5,6,7,8,9,10 but it would have to be every 14 rows: (example below)

Is there any way to do this without manually entering them? I have thousands I have to fill in, and it will take me forever to do it manually

Thanks!

example:

1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
3
3