Denominators of Sum_{k=1..n} 1/(k * 2^k).

Terms

a(0) =2a(1) =8a(2) =3a(3) =192a(4) =960a(5) =1920a(6) =1680a(7) =215040a(8) =645120a(9) =64512a(10) =1419264a(11) =11354112a(12) =147603456a(13) =295206912a(14) =46126080a(15) =47233105920a(16) =802962800640a(17) =802962800640