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A078100 One-half of number of ways of 3-coloring a 4 X n grid. +0
2
4, 27, 187, 1302, 9075, 63267 (list; graph; listen)
OFFSET

1,1
REFERENCES

Michael S. Paterson (Warwick), personal communication.

FORMULA

See A078099 for formula.

CROSSREFS

4th row of A078099.

Adjacent sequences: A078097 A078098 A078099 this_sequence A078101 A078102 A078103

Sequence in context: A061693 A005974 A010910 this_sequence A036753 A091125 A091121

KEYWORD

nonn,easy,more

AUTHOR

njas, Dec 05 2002

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Last modified October 5 16:50 EDT 2008. Contains 144613 sequences.

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