a(n) is the smallest abundant number of the form 2^e * prime(n).

Terms

a(0) =12a(1) =20a(2) =56a(3) =88a(4) =104a(5) =272a(6) =304a(7) =368a(8) =464a(9) =992a(10) =1184a(11) =1312a(12) =1376a(13) =1504a(14) =1696a(15) =1888a(16) =1952a(17) =4288a(18) =4544a(19) =4672a(20) =5056a(21) =5312a(22) =5696a(23) =6208a(24) =6464a(25) =6592a(26) =6848a(27) =6976a(28) =7232a(29) =16256