a(n+1) is the smallest prime beyond a(n) such that a(n+1) modulo a(n) is (congruent to) a prime; start with a(0)=1.
A248370
a(n+1) is the smallest prime beyond a(n) such that a(n+1) modulo a(n) is (congruent to) a prime; start with a(0)=1.
Terms
- a(0) =1a(1) =3a(2) =5a(3) =7a(4) =17a(5) =19a(6) =41a(7) =43a(8) =89a(9) =181a(10) =367a(11) =739a(12) =1481a(13) =1483a(14) =2969a(15) =2971a(16) =5953a(17) =11909a(18) =23831a(19) =23833a(20) =47713a(21) =95429a(22) =190871a(23) =381749a(24) =763559a(25) =1527121a(26) =3054283a(27) =6108607a(28) =12217327a(29) =24434701
External references
- oeis: A248370