1864356

Appears in sequences

• a(n) = f(n,n-2) where f is given in A034261.at n=10A034275
• First numerator and then denominator of the central elements of the 1/5-Pascal triangle (by row).at n=22A046610
• First denominator and then numerator of the central elements of the 1/5-Pascal triangle (by row).at n=23A046611
• Distinct numbers in writing first numerator and then denominator of the central elements of the 1/5-Pascal triangle (by row).at n=11A046612
• a(n) = C(n)*(11n+1) where C(n) = Catalan numbers (A000108).at n=10A050490