Numbers k that divide the average of prime(k) and prime(k+1).

Terms

a(0) =2a(1) =3a(2) =10a(3) =30a(4) =182a(5) =439a(6) =1058a(7) =40086a(8) =40090a(9) =40114a(10) =40120a(11) =100347a(12) =251708a(13) =637328a(14) =637336a(15) =637340a(16) =4124468a(17) =10553440a(18) =10553445a(19) =10553829a(20) =27067138a(21) =179992932a(22) =179993008a(23) =179993012a(24) =179993017a(25) =465769835