a(n) = A000010(n) * A002088(n).

A143231

a(n) = A000010(n) * A002088(n).

Terms

    a(0) =1a(1) =2a(2) =8a(3) =12a(4) =40a(5) =24a(6) =108a(7) =88a(8) =168a(9) =128a(10) =420a(11) =184a(12) =696a(13) =384a(14) =576a(15) =640a(16) =1536a(17) =612a(18) =2160a(19) =1024a(20) =1680a(21) =1500a(22) =3784a(23) =1440a(24) =4000a(25) =2544a(26) =4140a(27) =2904a(28) =7560a(29) =2224

External references