Volatile sequence: a(n) = A018227(n)-6.

Terms

a(0) =30a(1) =48a(2) =80a(3) =112a(4) =162a(5) =212a(6) =284a(7) =356a(8) =454a(9) =552a(10) =680a(11) =808a(12) =970a(13) =1132a(14) =1332a(15) =1532a(16) =1774a(17) =2016a(18) =2304a(19) =2592a(20) =2930a(21) =3268a(22) =3660a(23) =4052a(24) =4502a(25) =4952a(26) =5464a(27) =5976a(28) =6554a(29) =7132