Lower-Trimmed Subsequence
The lower-trimmed subsequence of 
is the sequence 
obtained by subtracting 1 from each 
andthen removing all 0s. If 
is a Fractal Sequence, then is a Fractal Sequence.If is a Signature Sequence, then 
.
References
Kimberling, C. ``Fractal Sequences and Interspersions.'' Ars Combin. 45, 157-168, 1997.
- Cis
- Cissoid
- Cissoid of Diocles
- Cissoid of Diocles Caustic
- Cissoid of Diocles Inverse Curve
- Cissoid of Diocles Pedal Curve
- Clairaut's Differential Equation
- Clarity
- Clark's Triangle
- Class
- Class (Group)
- Classical Groups
- Classification
- Classification Theorem
- Class Interval
- Class (Map)
- Class (Multiply Perfect Number)
- Class Number
- Class Number Formula
- Class Representative
- Class (Set)
- Clausen Formula
- Clausen Function
- Clausen's Integral
- CLEAN Algorithm