How do I get adobe flash player on my iPad

You don't.

None exists and adobe has abandoned mobile flash for all devices.

You can download browsers that claim to playback flash content.

Puffin, photon, skyfire, iswifter, etc.

Adobe has not made a version of Flash for the iPad.

Kappy explains why. https://discussions.apple.com/thread/4259344?answerId=19446567022#19446567022

5 Flash Player Alternatives http://www.techshout.com/features/2011/01/flash-player-for-ipad-apps/

Top 4 browsers supports flash player on iPad and iPhone

http://mashtips.com/flash-player-ios/

 Cheers, Tom 😉