Generating algorithms

• w-sequences
• Derangements

Java applets

• P-sequences
• Gray code for Motzkin words
• Gray code for Fibonacci sequences
• Gray code for Lucas sequences
• k-ary Dyck words in Gray code order

SAGE programs by Ahmad SABRI for generating

• Generating restricted growth sequences in RGC order and in Co-RGC order
• q-ary words avoiding a given factor
• Several classes of pattern avoiding permutations