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A033943 Sum of coefficients of a polynomial associated to a family of digraphs. +0
1
1, 1, 3, 13, 33, 81, 189 (list; graph; listen)
OFFSET

0,3
REFERENCES

Paper in preparation (1998).

CROSSREFS

Sequence in context: A052493 A061938 A032586 this_sequence A026084 A016061 A137976

Adjacent sequences: A033940 A033941 A033942 this_sequence A033944 A033945 A033946

KEYWORD

nonn

AUTHOR

dantona(AT)dsi.unimi.it (Ottavio D'Antona)

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Last modified July 26 13:41 EDT 2008. Contains 142293 sequences.

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