A156611 - OEIS

%I #10 Feb 13 2015 02:04:16

%S 2,5,11,17,29,41,53,67,83,101,127,149,173,199,227,257,293,331,367,409,

%T 449,491,541,587,641,691,743,797,853,911,971,1033,1097,1163,1231,1301,

%U 1373,1447,1523,1601,1693,1777,1861,1949,2039,2129,2221,2333,2437,2539,2647,2749,2857,2963,3079,3191,3307,3433,3557,3677

%N a(1) = 2, a(n+1) is smallest prime >= a(n)+2*n.

%H Charles R Greathouse IV, <a href="/A156611/b156611.txt">Table of n, a(n) for n = 1..10000</a>

%e 2, 5(>4=2+2*1), 11(>9=5+2*2), 17(>16=11+2*3), 29(>26+17+2*4), 41(>39=29+2*5), 53(=53=41+2*6), 67(=67=53+2*7), 83(=83=67+2*8), 101(=101=83+2*9), etc.

%o (PARI) a=vector(10000);a[1]=2;for(n=1,#a-1,a[n+1]=nextprime(a[n]+2*n)) \\ _Charles R Greathouse IV_, May 26 2011

%Y Cf. A007918.

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Feb 11 2009

%E a(42) corrected by _Charles R Greathouse IV_, May 26 2011