25869

Appears in sequences

• Expansion of F(x) where F(x) = 1 + x / (1 - x * F(x^2)^2 ).at n=18A238431
• Number of n X 2 0..1 arrays with each 1 adjacent to 3 or 4 king-move neighboring 1s.at n=14A296109
• a(n) = 2*p(n)*p(n+2) - p(n+1)^2 where p(k) = k-th prime.at n=36A324795