A155924 Palindromic primes of form k^2 + k + 41.

131, 151, 313, 383, 797, 3288823, 7493947, 312989213, 79091719097, 1884468644881, 191259232952191, 13388297179288331, 3101199511159911013, 327274601898106472723, 1208438177787877718348021, 301692965738393837569296103, 1739505607801036301087065059371, 74939038377936583938563977383093947, 1079892295877152422242517785922989701, 797548819139065899080998560931918845797

Offset

1,1

Comments

Corresponding k are: 9, 10, 16, 18, 27, 1813, 2737, 17691, 281232, 1372759, ...

Links

Table of n, a(n) for n=1..20.

Crossrefs

Cf. A002385, A005846, A050239, A098826, A134462.

Sequence in context: A134951 A173071 A164294 * A270237 A090264 A345520

Adjacent sequences: A155921 A155922 A155923 * A155925 A155926 A155927

Keyword

base,nonn,changed

Author

Zak Seidov, Jan 30 2009

Extensions

a(11)-a(12) from Donovan Johnson, Feb 01 2009

a(13)-a(14) from Donovan Johnson, Jun 23 2010

a(15)-a(16) from Donovan Johnson, Oct 11 2011

a(17)-a(20) from Max Alekseyev, Jun 04 2026

Status

approved