237312domain: NAppears in sequencesarcsinh(arcsinh(x)*arcsin(x))=2/2!*x^2-32/6!*x^6+237312/10!*x^10...at n=2A012604Triangle read by rows, T(n,k) = k^(n-k)*(n-k)!*Sum_{j=0..n-k}(-1)^j/j! for 0<=k<=n.at n=47A276995Expansion of e.g.f. arcsin(x*sec(x)) (odd powers only).at n=4A296741Expansion of e.g.f. 1/(1 - sin(3*x) / 3).at n=8A381286