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A031920 a(n) = prime(10*n-9). 1

%I #20 Sep 08 2022 08:44:50

%S 2,31,73,127,179,233,283,353,419,467,547,607,661,739,811,877,947,1019,

%T 1087,1153,1229,1297,1381,1453,1523,1597,1663,1741,1823,1901,1993,

%U 2063,2131,2221,2293,2371,2437,2539,2621,2689,2749,2833,2909

%N a(n) = prime(10*n-9).

%H Ivan Panchenko, <a href="/A031920/b031920.txt">Table of n, a(n) for n = 1..1000</a>

%e 31 is the 11th prime.

%t Prime/@Range[1,511,10] (* or *) Take[Prime[Range[511]],{1,-1,10}] (* _Harvey P. Dale_, Aug 27 2012 *)

%o (Magma) [ NthPrime(10*n-9): n in [1..1000] ]; // _Vincenzo Librandi_, Apr 08 2011

%K nonn

%O 1,1

%A _Jeff Burch_

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Last modified August 24 21:46 EDT 2024. Contains 375417 sequences. (Running on oeis4.)