Denominators of ((n+3)/(n+2)/(n+1)/n) (sorted with no repeats).

Terms

a(0) =3a(1) =10a(2) =24a(3) =105a(4) =112a(5) =120a(6) =165a(7) =252a(8) =680a(9) =720a(10) =728a(11) =858a(12) =1320a(13) =1365a(14) =1771a(15) =2280a(16) =2907a(17) =3360a(18) =3654a(19) =3990a(20) =4896a(21) =5200a(22) =6545a(23) =6900a(24) =8775a(25) =9240a(26) =9920a(27) =10660a(28) =12144a(29) =13485