a(n) = 2^A066657(n) * 3^A066658(n).

Terms

a(0) =6a(1) =18a(2) =54a(3) =108a(4) =486a(5) =972a(6) =1944a(7) =4374a(8) =8748a(9) =17496a(10) =69984a(11) =13122a(12) =162a(13) =52488a(14) =209952a(15) =839808a(16) =354294a(17) =708588a(18) =1417176a(19) =5668704a(20) =22674816a(21) =45349632a(22) =3188646a(23) =6377292a(24) =12754584a(25) =51018336a(26) =204073344a(27) =408146688a(28) =3265173504a(29) =258280326