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%I #55 Sep 08 2022 08:44:59
%S 4,5,7,9,13,15,19,21,25,31,33,39,43,45,49,55,61,63,69,73,75,81,85,91,
%T 99,103,105,109,111,115,129,133,139,141,151,153,159,165,169,175,181,
%U 183,193,195,199,201,213,225,229,231,235,241,243,253,259
%N a(n) = prime(n) + 2.
%C A048974, A052147, A067187 and A088685 are very similar after dropping terms less than 13. - _Eric W. Weisstein_, Oct 10 2003
%C A117530(n,2) = a(n) for n>1. - _Reinhard Zumkeller_, Mar 26 2006
%C a(n) = A000040(n) + 2 = A008864(n) + 1 = A113395(n) - 1 = A175221(n) - 2 = A175222(n) - 3 = A139049(n) - 4 = A175223(n) - 5 = A175224(n) - 6 = A140353(n) - 7 = A175225(n) - 8. - _Jaroslav Krizek_, Mar 06 2010
%C Left edge of the triangle in A065342. - _Reinhard Zumkeller_, Jan 30 2012
%C Union of A006512 and A107986. - _David James Sycamore_, Jul 08 2018
%H Vincenzo Librandi, <a href="/A052147/b052147.txt">Table of n, a(n) for n = 1..1000</a>
%p seq(ithprime(n)+2,n=1..55); # _Muniru A Asiru_, Jul 08 2018
%t Prime[Range[70]]+2 (* _Vladimir Joseph Stephan Orlovsky_, Apr 29 2008 *)
%o (Magma) [p+2: p in PrimesUpTo(400)]; // _Vincenzo Librandi_, Nov 27 2013
%o (Haskell)
%o a052147 = (+ 2) . a000040 -- _Reinhard Zumkeller_, Jul 03 2015
%o (PARI) a(n)=prime(n)+2 \\ _Charles R Greathouse IV_, Jan 19 2017
%o (Sage) [nth_prime(n) +2 for n in (1..70)] # _G. C. Greubel_, May 20 2019
%o (GAP) Filtered([1..300], k-> IsPrime(k) ) +2 # _G. C. Greubel_, May 20 2019
%Y A139690 is a subsequence.
%Y Cf. A040976, A000040.
%K nonn,easy
%O 1,1
%A Simon Colton (simonco(AT)cs.york.ac.uk), Jan 24 2000
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