A126037 a(n) is the largest prime < 9*a(n-1) for n > 1, with a(1) = 2.

2, 17, 151, 1327, 11941, 107467, 967201, 8704783, 78343019, 705087151, 6345784343, 57112059061, 514008531493, 4626076783423, 41634691050803, 374712219457181, 3372409975114627, 30351689776031621, 273165207984284509, 2458486871858560579, 22126381846727045189, 199137436620543406691

Offset: 1

Author

Artur Jasinski, Dec 16 2006

Keywords

• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000 (First 27 terms from Artur Jasinksi)

Crossrefs

Cf. A126031.

Programs

Mathematica

NestList[NextPrime[9#,-1]&,2,20] (* Harvey P. Dale, Jan 11 2019 *)