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

0,3

REFERENCES

Paper in preparation (1998).

LINKS

Table of n, a(n) for n=0..6.

CROSSREFS

Sequence in context: A146230 A166805 A252979 * A026084 A211801 A016061

Adjacent sequences:  A033940 A033941 A033942 * A033944 A033945 A033946

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified February 20 22:51 EST 2019. Contains 320362 sequences. (Running on oeis4.)