-2868

Appears in sequences

• Coordination sequence for octagonal tiling is a(n)*sqrt(2) + A103909(n).at n=22A103908
• Site percolation series for triangular lattice: coefficients of the power series expansion in powers of q=1-p of the probability that a given open site belongs to the infinite cluster, where p is the probability that a site is open.at n=16A391391