aababaababaabaabbccd [rev]
aababaababaabaabccdd [rev]
aabbabbababbababbccd [rev]
aabbabbababbababccdd [rev]
aabbcbcbbcbcbbcbbccd [rev]
aabbcbcbbcbcbbcbbcdd [rev]
aabbccbccbcbccbcbccd [rev]
aabbccbccbcbccbcbcdd [rev]
aabbccdcdccdcdccdccd [rev]
aabbccddcddcdcddcdcd [rev]

Number of Distinct Characters: 4
String Length: 20
Maximum Number of Squares: 13
Number of Unique Strings: 10 (not including reversible twins)