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A231161 Number of Gram blocks [g(j), g(j+5)) up to 10^n with 0 <= j < 10^n. 2
0, 1, 32, 821, 25813 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,3

COMMENTS

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.

LINKS

Table of n, a(n) for n=4..8.

Richard P. Brent, On the Zeros of the Riemann Zeta Function in the Critical Strip, Math. Comp. 33 (1979), pp. 1361-1372.

Eric Weisstein's World of Mathematics, Gram Block

Eric Weisstein's World of Mathematics, Gram Point

CROSSREFS

Cf. A114856, A231157-A231160, A231162-A231165.

Sequence in context: A238771 A181248 A139677 * A220460 A203957 A301839

Adjacent sequences:  A231158 A231159 A231160 * A231162 A231163 A231164

KEYWORD

nonn,more

AUTHOR

Arkadiusz Wesolowski, Nov 04 2013

STATUS

approved

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Last modified April 25 04:08 EDT 2019. Contains 322450 sequences. (Running on oeis4.)