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

Here is Why You Need An Adapter

The outlet and plug type used in Taiwan are A and B and in Seychelles is G. This is how they look like.

Seychelles

In Seychelles, outlets of type G are in use.

Type G

Taiwan

In Taiwan, outlets of type A and B are in use.

Type A

Type B