150270097

Properties

Appears in sequences

• Matching number of the n-odd graph.at n=15A301560
• a(n) = floor(binomial(n-1, floor((n-1)/2))/2).at n=29A366108
• a(n) is the numerator of tanh(Sum_{k=1..n-1} artanh(k/n)), where artanh is the inverse hyperbolic tangent function.at n=15A382257
• Prime numbersat n=8458753