1040060

Appears in sequences

• Expansion of 1/(1-4*x)^(17/2).at n=5A020928
• Sequence of coefficients of x^(n-3) in marked mesh pattern generating function Q_{n,132}^(0,3,0,0)(x).at n=12A212344
• a(n) = (binomial(n,floor(n/2)))/(greatest common divisor of all numbers in n-th row of Pascal's triangle excluding 1 and n).at n=21A327703
• a(n) = 4^n * binomial(5*n/2,n).at n=5A386897