I'm not sure how this cipher received the Vigenere name, as it bears little relation to the Vigenere cipher. I suppose it is possible that it is a cipher that was also invented by Vigenere that isn't very similar to the other cipher he is attributed to.
Foy your key, you will need the last two digits of the years the Lady Vols Basketball Team won their last three national championships.
288 175 686 744 56 3234 5720 56