1134705

Appears in sequences

• Random walks.at n=8A005025
• If n mod 2 = 0 then m := n/2 and a(n) = (3*m)!*(5*m+1)/((m+1)!*(2*m+1)!); otherwise m := (n-1)/2, a(n) = 6*(3*m+2)!/(m!*(2*m+3)!).at n=18A047750
• Expansion of x/(1 - 9*x + 28*x^2 - 35*x^3 + 15*x^4 - x^5).at n=9A122588
• Number of walks in the first quadrant starting and ending at (0,0) consisting of 3n steps taken from {E=(1, 0), D=(-1, 1), S=(0, -1)}, no S step occurring before the final E step.at n=9A274969