You Do Need power plug adapter while traveling from Seychelles to Norway.

Here is Why You Need An Adapter

The outlet and plug type used in Norway are C and F and in Seychelles is G. This is how they look like.

Seychelles

In Seychelles, outlets of type G are in use.

Type G

Norway

In Norway, outlets of type C and F are in use.

Type C

Type F