49722

Appears in sequences

• Number of different walks generated by n steps that can only go in {east, southeast, southwest} directions on the 300-degree wedge in a 60-degree equilateral triangular lattice.at n=11A129703
• Numbers n such that S(n) = 0, where S(n) = (S(n-1) + A000040(n+1))*(-1)^n; S(0)=0, n >= 1.at n=14A131693
• Numbers k such that k and k^2 use only the digits 2, 4, 7, 8 and 9.at n=25A137107
• Number of -3..3 arrays x(i) of n+1 elements i=1..n+1 with set{t,u,v in 0,1}((x[i+t]+x[j+u]+x[k+v])*(-1)^(t+u+v)) having two, three, four, six or eight distinct values for every i,j,k<=n.at n=5A211750