a(1) = 2, a(2) = 3; for n > 0, a(n+2) is the smallest prime chosen so that (a(n+2) - a(n+1))/(a(n+1) - a(n)) is an integer.
A084736
a(1) = 2, a(2) = 3; for n > 0, a(n+2) is the smallest prime chosen so that (a(n+2) - a(n+1))/(a(n+1) - a(n)) is an integer.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =11a(5) =19a(6) =43a(7) =67a(8) =139a(9) =211a(10) =283a(11) =499a(12) =1579a(13) =2659a(14) =3739a(15) =8059a(16) =12379a(17) =16699a(18) =21019a(19) =25339a(20) =38299a(21) =103099a(22) =167899a(23) =232699a(24) =491899a(25) =1787899a(26) =9563899a(27) =17339899a(28) =25115899a(29) =40667899
External references
- oeis: A084736