#Pyth, 11 bytes

jm^s*d\12S9

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##How does this work?

 m       S9         - Map over [1...9]
  ^s    2           - The square of the integer formed by:
    *d\1            - the string with n consecutive 1s.
j                   - Join by newlines

Pyth, 11 bytes

jm^s*d\12S9

Try it online!

How does this work?

 m       S9         - Map over [1...9]
  ^s    2           - The square of the integer formed by:
    *d\1            - the string with n consecutive 1s.
j                   - Join by newlines

#Pyth, 11 bytes

jm^s*d\12S9

Try it online!

#Pyth, 11 bytes

jm^s*d\12S9

Try it online!

##How does this work?

 m       S9         - Map over [1...9]
  ^s    2           - The square of the integer formed by:
    *d\1            - the string with n consecutive 1s.
j                   - Join by newlines

#Pyth, 13 bytes

jm^/t^Td9 2ST

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#Pyth, 11 bytes

jm^s*d\12S9

Try it online!