Slowest increasing sequence of primes such that a(n - 1) + a(n) and a(n - 1)^2 + a(n)^2 are both semiprimes, with a(1)=2.

A365050

Slowest increasing sequence of primes such that a(n - 1) + a(n) and a(n - 1)^2 + a(n)^2 are both semiprimes, with a(1)=2.

Terms

    a(0) =2a(1) =19a(2) =1459a(3) =1699a(4) =3079a(5) =3259a(6) =5419a(7) =5479a(8) =6079a(9) =6679a(10) =7219a(11) =8059a(12) =8719a(13) =11299a(14) =12619a(15) =13219a(16) =13399a(17) =15559a(18) =15679a(19) =18919a(20) =24379a(21) =25219a(22) =26839a(23) =34819a(24) =38239a(25) =39019a(26) =39799a(27) =40459a(28) =40759a(29) =42019

External references