A133010 Characteristic function of the Riemann zeta function: If n is a nearest integer to imaginary part of zero, then a(n)=1 else a(n)=0.

0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0

Offset

1,1

Comments

Also an interesting triangle read by row: See tabl.

Links

Table of n, a(n) for n=1..78.

Index entries for characteristic functions

Index entries for zeta function.

Example

a(30)=1 because 30 is the nearest integer to imaginary part of 4th nontrivial zero of Riemann zeta function.

Crossrefs

See A002410 for more information. Cf. A058303, A065434, A065452, A065453.

Sequence in context: A011728 A297043 A355451 * A234323 A162782 A011727

Adjacent sequences: A133007 A133008 A133009 * A133011 A133012 A133013

Keyword

easy,nonn,tabl

Author

Omar E. Pol, Sep 13 2007

Status

approved