How can I generate a series of repeating numbers in PostgreSQL?

Question

In PostgreSQL, is it possible to generate a series of repeating numbers? For example, I want to generate the numbers 1 to 10, with each number repeated 3 times:

Answer 1

Just another options:

select generate_series(1, 3) from generate_series(1, 10)

select generate_series(1, 30) % 10 + 1