%I #3 Mar 31 2012 14:02:20
%S 0,0,0,3,3,5,15,13,10,13,25,22,97,85,203,359,625,1067,1880,3166,6068
%N Ratio A095106(n)/A095093(n) rounded down.
%C This is the average diving index for those 4k+3 primes in range ]2^n,2^(n+1)] that "dive". See A095103.
%C The ratios before rounding are: 0, 0, 0, 3, 3, 5.666667, 15.666667, 13.166667, 10.142857, 13.926829, 25.805195, 22.118881, 97.536585, 85.237736, 203.39802, 359.470768, 625.039342, 1067.145123, 1880.907721, 3166.124599, 6068.683879.
%C Ratio (A095106(n)/A095093(n))/(A095109(n)/A095091(n)) starts as follows: 0, 0, 0, 1, 0.5, 0.428571, 0.4, 0.387097, 0.308824, 0.277027, 0.248387, 0.215361, 0.213383, 0.191474, 0.178036, 0.169496, 0.156814, 0.148329, 0.141456, 0.134383.
%F a(n) = 0 if A095093(n) is 0, otherwise a(n) = floor(A095106(n)/A095093(n).
%Y A095356 gives the same ratios rounded to nearest integer. A095359 gives similar ratios computed for all 4k+3 integers.
%K nonn
%O 1,4
%A _Antti Karttunen_, Jun 12 2004
|