A333977 Prime starting a sequence of 20 consecutive primes with symmetrical gaps about the center.

1797595814863, 2375065608481, 4465545586753, 21818228348093, 67696772430071, 82116093014611, 155947272322087, 161980267642951, 169560139541641, 202619277419161, 285719200081877, 299828814652799, 314942862282899, 365706921997577

Offset: 1

Author

Tomáš Brada, Sep 20 2020

Keywords

• nonn

Links

• Tomáš Brada, Natalia Makarova, Symmetric Prime Tuples project
• Natalia Makarova, About Stop@home project
• Natalia Makarova and Carlos Rivera, Problem 62. Symmetric k-tuples of consecutive primes, The Prime Puzzles and Problems Connection.

Crossrefs

Cf. A000040, A055381, A055382, A064101, A081235, A175309, A335044, A335394, A336967, A336968, A359440.

Formula

Primes p = prime(k) = A000040(k) such that A359440(k+9) >= 9. - Peter Munn, Jan 09 2023