Numbers k that divide prime(k) + prime(k-1).

Terms

a(0) =4a(1) =6a(2) =13a(3) =14a(4) =15a(5) =74a(6) =190a(7) =688a(8) =690a(9) =6456a(10) =40082a(11) =251735a(12) =251736a(13) =251738a(14) =399916a(15) =637325a(16) =637326a(17) =637342a(18) =637343a(19) =2582372a(20) =2582434a(21) =4124456a(22) =4124458a(23) =6592686a(24) =10553425a(25) =10553433a(26) =10553818a(27) =27067038a(28) =27067053a(29) =43435902