4508793983

Appears in sequences

• a(n) = 30240*n^5-25200*n^4+5040*n^3+7320*n^2-2638*n+1.at n=11A272128
• E.g.f. A(x) satisfies A(x) = exp( x*((A(x) + A(-x))/2)^2 ).at n=11A385687