A327760 Primes in Rob Gahan's arithmetic progression of 27 primes.

224584605939537911, 242720302537486841, 260855999135435771, 278991695733384701, 297127392331333631, 315263088929282561, 333398785527231491, 351534482125180421, 369670178723129351, 387805875321078281, 405941571919027211, 424077268516976141, 442212965114925071

Offset: 1

Author

Felix Fröhlich, Sep 25 2019

Keywords

• nonn
• fini
• full
• easy

Comments

This arithmetic progression of 27 primes (AP27) was discovered by Rob Gahan on 23 September 2019 as part of PrimeGrid's AP27 Search subproject (cf. Goetz, 2019).

Links

• Felix Fröhlich, Table of n, a(n) for n = 1..27
• M. Goetz, World's First AP27!!!, PrimeGrid forum, Sep 23, 2019.
• PrimeGrid, 224584605939537911+81292139*23#*n for n=0..26
• PrimeGrid, Official announcement of the AP27
• Stéphane Vinatier and William Reginald Alcorn, Mathematics as seen by an artist: Inspiring mathematical objects, Eur. Math. Soc. Mag. (2025) Vol. 135, 20-31. See p. 26.
• Index entries for sequences related to primes in arithmetic progressions

Crossrefs

Cf. A033188, A033290, A204189, A260751, A261140, A363980, A374949.

Programs

Mathematica

A327760[n_] := 224584605939537911 + (n-1)*18135696597948930;
Array[A327760, 27] (* Paolo Xausa, Jan 30 2024 *)

PARI

vector(27, t, 224584605939537911+81292139*223092870*(t-1))