Yes. It prints the following on my computer:
a=45 pa=10577574
Comments: The statement
printf("a=%d pa=%o\n", a, pa )
prints the contents of a (an ordinary integer)
and then prints the contents of pa (using octal).
The pointer variable pa contains a pointer value,
and there is little reason to print it out, but it is OK to do so.
Without * in front of it, pa means
get what pa contains.
On your computer you will see a different value
for pa.
pa contains the address of a,
and that value depends on what choices the compiler, linker, and loader made.