Numbers n such that 6*p(n)-1 and 6*p(n)+1 are twin primes and 6*p(n+1)-1 and 6*p(n+1)+1 are also twin primes with p(n) = n-th prime.

A126655

Numbers n such that 6*p(n)-1 and 6*p(n)+1 are twin primes and 6*p(n+1)-1 and 6*p(n+1)+1 are also twin primes with p(n) = n-th prime.

Terms

    a(0) =1a(1) =2a(2) =3a(3) =27a(4) =137a(5) =340a(6) =479a(7) =882a(8) =1415a(9) =1883a(10) =3442a(11) =3798a(12) =4284a(13) =5827a(14) =7559a(15) =8783a(16) =9453a(17) =10355a(18) =10731a(19) =11388a(20) =12565a(21) =13613a(22) =16477a(23) =17007a(24) =18402a(25) =18665a(26) =19450a(27) =19633a(28) =22306a(29) =24971

External references