118281

Appears in sequences

• a(i)=a(i-1)+a(j_1)*a(j_2) {where j_1+j_2=i-1, j_1 <= q j_2} + a(j_1)*a(j_2)*a(j_3) {where j_1+j_2+j_3=i-1, j_1 <= q j_2 <= q j_3} +...+ a(1)^{i-1}.at n=14A027881
• Expansion of (1 + x)/(1 - 2*x - x^2 + x^3).at n=14A033303
• Expansion of (1-x)/(1+2*x-x^2-x^3).at n=14A078056
• Number of pyramid polycubes of a given volume in dimension 3.at n=23A229914
• Maximal term of TRIP-Stern sequence of level n corresponding to permutation triple (e,13,e).at n=28A271485
• Number of self-avoiding planar walks starting at (0,0), ending at (n,0), not extending above the line (x,2x) or below the line (x,-2x), and using steps (0,1), (-1,1), and (1,-1) with the restriction that (-1,1) and (1,-1) are always immediately followed by (0,1).at n=13A328139