[math-fun] Can you please tell me the name of this pretty group?

Can any of you please tell me the name of this pretty group? 0 1 2 3 4 5 6 7 1 0 4 5 2 3 7 6 2 4 0 6 1 7 3 5 3 5 6 0 7 1 2 4 4 2 1 7 0 6 5 3 5 3 7 1 6 0 4 2 6 7 3 2 5 4 0 1 7 6 5 4 3 2 1 0 What do you think would be the best way of answering similar queries? Thanks! --MLB