19239

Appears in sequences

• Numerator of the probability that 2n-dimensional Gaussian random triangle has an obtuse angle.at n=4A102556
• a(1) = a(2) = 1; for n>2, a(n+1) = a(n) + a(n-1) iff n is prime, otherwise a(n+1) = a(n) + 1.at n=43A113050
• a(n) = 2^(n-1)*((2*n)!/n!) * Integral_{t=0..Pi/3} sin(t)^(2*n-1) dt.at n=4A123130
• Number of connected dominating sets in the n-prism graph.at n=8A286985