Create multiple files in Linux with a pattern

UNIX for Beginners Q & A
1

I want to create multiple odd numbered files in linux like file1a file1b......file1z file3a...file3z file5a...filez and so on
Till now I've come up with touch $(seq -f "file%g" 1 2 10) This will create file1 file3 and so on but where should I put {a..z} to attach these alphabets to each file?

2

How about

touch file{1..10..2}{a..z}