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%I #12 Nov 07 2013 10:45:18
%S 0,42,780,9445,100203,1034545,10493487
%N Number of Gram blocks [g(j), g(j+2)) up to 10^n with 0 <= j < 10^n.
%C We call a Gram point g(j) "good" if j is not in A114856, and "bad" otherwise. A "Gram block of length k" is an interval [g(j), g(j+k)) such that g(j) and g(j+k) are good Gram points, g(j+1), ..., g(j+k-1) are bad Gram points, and k >= 1.
%H Richard P. Brent, <a href="http://www.ams.org/journals/mcom/1979-33-148/S0025-5718-1979-0537983-2/">On the Zeros of the Riemann Zeta Function in the Critical Strip</a>, Math. Comp. 33 (1979), pp. 1361-1372.
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GramBlock.html">Gram Block</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/GramPoint.html">Gram Point</a>
%Y Cf. A114856, A231157, A231159-A231165.
%K nonn,more
%O 2,2
%A _Arkadiusz Wesolowski_, Nov 04 2013