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A087388 a(1) = 2; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n). 4

%I #5 Dec 05 2013 19:56:21

%S 2,23,3203,302317,7132031,130231711,1171320317,71302317113,

%T 31171320317057,7507130231711321,123117132031705727,

%U 7275071302317113213,312311713203170572751,157275071302317113213041

%N a(1) = 2; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n).

%e a(2) = 23, a(3) is the smallest prime beginning with 32 and is 3203.

%Y Cf. A087389, A087390, A087391.

%K base,nonn

%O 1,1

%A _Amarnath Murthy_, Sep 09 2003

%E More terms from _David Wasserman_, May 25 2005

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Last modified April 19 09:21 EDT 2024. Contains 371782 sequences. (Running on oeis4.)