Floor(Primorial(n) / compositorial(n)), that is, floor(A002110(n) / A036691(n)).

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =18a(5) =39a(6) =85a(7) =191a(8) =425a(9) =940a(10) =2185a(11) =5183a(12) =12814a(13) =32711a(14) =84715a(15) =218141a(16) =555741a(17) =1376723a(18) =3457106a(19) =9544621a(20) =26048861a(21) =72830491a(22) =202468765a(23) =591526393a(24) =1717701641a(25) =4994058475a(26) =14800573301a(27) =44137423952a(28) =133960953399a(29) =413431218250