a(1) = 3, a(2) = 4. a(n) = (largest composite which occurs earlier in sequence) + (largest prime which occurs earlier in sequence).
A120365
a(1) = 3, a(2) = 4. a(n) = (largest composite which occurs earlier in sequence) + (largest prime which occurs earlier in sequence).
Terms
- a(0) =3a(1) =4a(2) =7a(3) =11a(4) =15a(5) =26a(6) =37a(7) =63a(8) =100a(9) =137a(10) =237a(11) =374a(12) =511a(13) =648a(14) =785a(15) =922a(16) =1059a(17) =1196a(18) =1333a(19) =1470a(20) =1607a(21) =3077a(22) =4684a(23) =6291a(24) =7898a(25) =9505a(26) =11112a(27) =12719a(28) =14326a(29) =15933
External references
- oeis: A120365