-2029776

Appears in sequences

• Product_{n>=1} 1 / (1 - x^n)^(a(n)/n!) = 1 + arcsin(x).at n=9A354115
• 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=18A391388