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COMBINATORICS
2004
55views more  COMBINATORICS 2004»
14 years 11 months ago
On the Generation and Enumeration of some Classes of Convex Polyominoes
Alberto Del Lungo, Enrica Duchi, Andrea Frosini, S...
84
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COMBINATORICS
2004
103views more  COMBINATORICS 2004»
14 years 11 months ago
Constructive Lower Bounds on Classical Multicolor Ramsey Numbers
Xu Xiaodong, Xie Zheng, Geoffrey Exoo, Stanislaw P...
COMBINATORICS
2004
96views more  COMBINATORICS 2004»
14 years 11 months ago
A Combinatorial Proof of the Sum of q-Cubes
We give a combinatorial proof of a q-analogue of the classical formula for the sum of cubes.
Kristina C. Garrett, Kristen Hummel
66
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COMBINATORICS
2004
94views more  COMBINATORICS 2004»
14 years 11 months ago
There Exist Binary Circular 5/2+; Power Free Words of Every Length
We show that there exist binary circular 5/2+ power free words of every length.
Ali Aberkane, James D. Currie
COMBINATORICS
2004
76views more  COMBINATORICS 2004»
14 years 11 months ago
On Rainbow Arithmetic Progressions
Consider natural numbers {1,
Maria Axenovich, Dmitry Fon-Der-Flaass