Strange sequences - how to construct?

From: SQL Padawan <sql_padawan(at)protonmail(dot)com>
To: "pgsql-novice(at)lists(dot)postgresql(dot)org" <pgsql-novice(at)lists(dot)postgresql(dot)org>
Subject: Strange sequences - how to construct?
Date: 2021-10-22 19:29:58
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Good afternoon to everybody.

I wish to construct some weird sequences.

1
1
2
2
&c.

and with 3 ones, 4 ones... &c.

Now, I know how to do a simple
1
2
3
4

using both GENERATE_SERIES and using a RECURSIVE CTE.

What I would like is to be able to construct my specified sequences using *_both_* GENERATE_SERIES *_and_* RECURSIVE CTEs.

Regards,

SQL Padawan!

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