-13704

Appears in sequences

• Expansion of e.g.f.: arctanh(exp(x)-sec(x)).at n=8A013336
• Site percolation series for square 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.at n=14A391388