559134

Appears in sequences

• Expansion of 1/(1+6*x*c(x)), where c(x) = g.f. for Catalan numbers A000108.at n=8A127017
• Number of nX1 0..2 arrays with values 0..2 introduced in row major order, the number of instances of each value within one of each other, and no element equal to any horizontal or vertical neighbor.at n=22A199126