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%I #30 Mar 24 2023 02:50:25
%S 5,7,11,15,23,27,35,39,47,59,63,75,83,87,95,107,119,123,135,143,147,
%T 159,167,179,195,203,207,215,219,227,255,263,275,279,299,303,315,327,
%U 335,347,359,363,383,387,395,399,423,447,455,459,467,479
%N a(n) = 2*prime(n)+1.
%H Reinhard Zumkeller, <a href="/A072055/b072055.txt">Table of n, a(n) for n = 1..10000</a>
%H R. P. Boas & N. J. A. Sloane, <a href="/A005381/a005381.pdf">Correspondence, 1974</a>
%F a(n) = A089241(n)-1.
%t 2*Prime[Range[60]]+1 (* _Harvey P. Dale_, Mar 31 2011 *)
%o (Haskell)
%o a072055 = (+ 1) . (* 2) . a000040 -- _Reinhard Zumkeller_, Oct 10 2013
%Y Cf. A000040, A005385, A023589, A023590, A023591, A023592, A023593, A072059, A023595, A072060, A072056, A072057, A072058, A072192, A165286, A278230.
%Y One less than A089241. After the initial term equal to A166496.
%Y Row 4 of A286625, column 4 of A286623.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, Jun 11 2002
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