3728286

Appears in sequences

• Number of fixed points in all 132- and 213-avoiding permutations of {1,2,...,n} (these are permutations with runs consisting of consecutive integers).at n=24A068018
• Expansion of (1-x)^(-1)/(1-x+2*x^2-2*x^3).at n=45A077874
• Partial sums of A166752.at n=23A166753