OFFSET
0,2
COMMENTS
Next term (2^80*3^160*5^369) contains over 300 digits.
REFERENCES
Athanasiadis, Christos A., "Spectra of some interesting combinatorial matrices related to oriented spanning trees on a directed graph", J. Algebraic Combin. 5 (1996), no. 1, 5-11.
CROSSREFS
KEYWORD
nonn
AUTHOR
James Propp, Feb 07 2000
STATUS
approved