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A126037 a(n) is largest prime < 9*a(n-1). 2

%I #10 Jan 11 2019 12:53:45

%S 2,17,151,1327,11941,107467,967201,8704783,78343019,705087151,

%T 6345784343,57112059061,514008531493,4626076783423,41634691050803,

%U 374712219457181,3372409975114627,30351689776031621,273165207984284509

%N a(n) is largest prime < 9*a(n-1).

%H Harvey P. Dale, <a href="/A126037/b126037.txt">Table of n, a(n) for n = 1..1000</a> (* First 27 terms from Artur Jasinksi *)

%t NestList[NextPrime[9#,-1]&,2,20] (* _Harvey P. Dale_, Jan 11 2019 *)

%Y Cf. A006902, A040016, A120031-A120040.

%K nonn

%O 1,1

%A _Artur Jasinski_, Dec 16 2006

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Last modified April 25 05:18 EDT 2024. Contains 371964 sequences. (Running on oeis4.)