According to my calculation its 676 (With only repeating letters like your domains, not like pfpp etc).
Eg. Consider there is only 3 letters on alphabet and its A, B, C. These are the possible combinations.
Starting 3 Repeating - AAAA, AAAB, AAAC, BBBA, BBBB, BBBC, CCCA, CCCB, CCCC
Last 3 Repeating - AAAA, ABBB, ACCC, BAAA, BBBB, BCCC, CAAA, CBBB, CCCC
As you can see, 3 domains are duplicated. So the real calculation would be;
33 * 2 โ 3 = 15
So in English alphabet its like this,
2626 * 2 โ 26 = 15 = 1326
Correct me if I'm wrong
According to my experience its a collector domain. Hard to find end users. Just rolling from one domainer to another. But LVVV means Letter+Vowel+Vowel+Vowel. So again it attracts fellow domainers. I feel its will sell for Mid XXX to High XXX