The lower-trimmed subsequence of is the sequence obtained by subtracting 1 from each and then removing all 0s. If is a fractal sequence, then is a fractal sequence. If is a signature sequence, then .

# Lower-Trimmed Subsequence

## See also

Signature Sequence, Upper-Trimmed Subsequence## Explore with Wolfram|Alpha

## References

Kimberling, C. "Fractal Sequences and Interspersions."*Ars Combin.*

**45**, 157-168, 1997.

## Referenced on Wolfram|Alpha

Lower-Trimmed Subsequence## Cite this as:

Weisstein, Eric W. "Lower-Trimmed Subsequence."
From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Lower-TrimmedSubsequence.html