Hardy-Littlewood approximation to the number of twin primes less than 10^n.
A152051
Hardy-Littlewood approximation to the number of twin primes less than 10^n.
Terms
- a(0) =5a(1) =14a(2) =46a(3) =214a(4) =1249a(5) =8248a(6) =58754a(7) =440368a(8) =3425308a(9) =27411417a(10) =224368865a(11) =1870559867a(12) =15834598305a(13) =135780264894
External references
- oeis: A152051