206349

Appears in sequences

• a(n)=number of Catalan knight paths in Quadrant I from (0,0) to points on the vertical line x=n. A Catalan knight moves (2 right and 1 up) or (1 right and 1 down).at n=14A096588
• Least odd k such that C(2k, k) == 1 (mod A007775(n)), or 0 if no such k exists.at n=49A373469