36669domain: NAppears in sequencesExpansion of e.g.f. sinh(log(1+x)*cos(x)).at n=9A009579Numbers k such that (2*10^k + 547)/9 is prime.at n=21A292903a(n) = (n - 1)*n*(2*n^2 + 4*n - 1)/6.at n=18A330700a(n) = Sum_{k=0..floor(2*n/7)} binomial(2*k,2*n-7*k).at n=37A392430