546975

Appears in sequences

• a(n) = (2^(n-1)/(2n)!)*Product_{k=1..n} q(k) where q(n) is the denominator of B(2n), the 2n-th Bernoulli number.at n=31A069267
• Positive integers n such that n^2 = (x^4 - y^4)*(z^4 - t^4) where x>y and z>t are distinct pairs of integers with gcd(x,y)=gcd(z,t)=1.at n=26A147856
• From higher-order Bernoulli numbers: denominator of D Number D2n(2n).at n=32A261274
• Total number of edges formed after n points have been placed in general position on each edge of a triangle (as in A365929).at n=19A366932