MU-numbers: next term is uniquely the product of 2 earlier terms.

Terms

a(0) =2a(1) =3a(2) =6a(3) =12a(4) =18a(5) =24a(6) =48a(7) =54a(8) =96a(9) =162a(10) =192a(11) =216a(12) =384a(13) =486a(14) =768a(15) =864a(16) =1458a(17) =1536a(18) =1944a(19) =3072a(20) =3456a(21) =4374a(22) =6144a(23) =7776a(24) =12288a(25) =13122a(26) =13824a(27) =17496a(28) =24576a(29) =31104