a(0)=1, then a(n) is the least sum of two successive primes that is a multiple of n and > a(n-1).

Terms

a(0) =1a(1) =5a(2) =8a(3) =12a(4) =24a(5) =30a(6) =36a(7) =42a(8) =112a(9) =144a(10) =210a(11) =308a(12) =360a(13) =390a(14) =434a(15) =450a(16) =480a(17) =918a(18) =990a(19) =1064a(20) =1120a(21) =1428a(22) =1518a(23) =1656a(24) =1848a(25) =1900a(26) =2132a(27) =2430a(28) =2604a(29) =2610