%I #15 Jun 17 2024 07:04:05
%S 6,1,2,0,8,7,9,2,8,5,4,8,9,7,7,6,8,6,5,1,5,9,4,1,6,1,9,4,5,9,9,8,0,7,
%T 2,1,3,1,0,4,4,4,0,5,9,3,7,9,0,2,4,7,4,0,0,7,7,4,6,3,8,7,0,3,9,9,5,1,
%U 2,8,7,3,3,8,3,6,6,1,8,3,8,6,3,7,6,5,2,4,4,2,9,8,9,3,2,1,9,5,9,7,4,3,3,5,4
%N n-th digit after decimal point of (sqrt(n^2+4)-n)/2.
%H Paolo Xausa, <a href="/A085552/b085552.txt">Table of n, a(n) for n = 1..10000</a>
%e This is a listing of the first 11 n + = reciprocal numbers.
%e 0.6 1803398874989484820458683436...
%e 0.41 421356237309504880168872420...
%e 0.302 77563773199464655961063373...
%e 0.2360 6797749978969640917366873...
%e 0.19258 240356725201562535524577...
%e 0.162277 66016837933199889354443...
%e 0.1400549 4464025913554865124576...
%e 0.12310562 561766054982140985597...
%e 0.109772228 64644365500113714088...
%e 0.0990195135 9278483002822410902...
%e 0.09016994374 947424102293417182...
%t Table[Mod[Floor[(Sqrt[n^2 + 4] - n)/2*10^n], 10], {n, 100}] (* _Paolo Xausa_, Jun 17 2024 *)
%K easy,cons,nonn
%O 1,1
%A _Cino Hilliard_, Jul 04 2003
%E Offset corrected by _Paolo Xausa_, Jun 17 2024