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A231159 Number of Gram blocks [g(j), g(j+3)) up to 10^n with 0 <= j < 10^n. 2
0, 22, 779, 13822, 184107, 2169610 (list; graph; refs; listen; history; text; internal format)
OFFSET

3,2

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=3..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, A231158, A231160-A231165.

Sequence in context: A278440 A152957 A237605 * A095696 A322930 A200575

Adjacent sequences:  A231156 A231157 A231158 * A231160 A231161 A231162

KEYWORD

nonn,more

AUTHOR

Arkadiusz Wesolowski, Nov 04 2013

STATUS

approved

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Last modified May 11 19:21 EDT 2021. Contains 343808 sequences. (Running on oeis4.)