Repeat unit A/T repeats 18 times in the reference sequence.
...ATTTCCGATGTCATTTTCTTGTTTTGAGGCGATGCTTTCTGATTTATTTCACGTTTATTTTCTGTAAAGGAAAACACCCTCCTAAACATACATTTTCTCA
AGGCACATCACATGGTCTGAAAAAAAAAACAAAAAAAGGACATCTTCTCCAAATTGGTATTCCTCCAGCTGGAGCAGCTCTGTTGCTGCCAAGCTTCGGT
TCTTTGACAAGAAGAGACATTTCAAAGCCGGGTCCCACAGGAGGGGTTCACGCCACA...