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A391392
Site percolation series for hexagonal lattice: coefficients of the power series expansion in powers of q=1-p of the probability that a given site (not assumed to be open) belongs to the infinite cluster, where p is the probability that a site is open.
3
1, -1, 0, -1, -2, -3, -22, -8, -324, 157, -4159, 8988, -58973, 159656
OFFSET
0,5
FORMULA
a(n) = A391393(n)-A391393(n-1) for n >= 1.
CROSSREFS
KEYWORD
sign,more
AUTHOR
STATUS
approved