A033943 Sum of coefficients of a polynomial associated to a family of digraphs.

1, 1, 3, 13, 33, 81, 189

Offset

0,3

References

Paper in preparation (1998).

Links

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

Crossrefs

Sequence in context: A166805 A252979 A332366 * A026084 A211801 A016061

Adjacent sequences: A033940 A033941 A033942 * A033944 A033945 A033946

Keyword

nonn

Author

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

Status

approved