RepeatingMatrix[sequence,k]⟹matrix

this function takes a sequence and returns a matrix descirbing if the ovelapping subsequenes of length k from start to finish that are repeated where 1 specifies a repeat, and 0 specifies a unique subsequence.

RepeatingMatrix[sequence,k,Span[m,n]]⟹matrix

this function takes a sequence and returns a matrix descirbing if the ovelapping subsequenes of length k in the range from position m to n are repeated where 1 specifies a repeat, and 0 specifies a unique subsequence.