838860799domain: NAppears in sequencesWoodall (or Riesel) numbers: n*2^n - 1.at n=24A003261a(n) = (2n+1)*2^(2n+1) - 1.at n=12A098713Woodall semiprimes: Semiprimes of the form n*2^n - 1.at n=8A242115