A340782 - OEIS

A340782

Decimal expansion of Sum_{n>=1} 1/(x(n)*J0(x(n))) where x(n) is the n-th zero of Bessel's function J1(x) (negated).

3, 8, 4, 7, 9, 0, 1, 9, 7, 3, 7, 9, 3, 7, 9, 1, 7, 2, 9, 7, 5, 9, 0, 9, 2, 2, 5, 6, 3, 2, 2, 9, 4, 2, 2, 2, 0, 6, 3, 3, 2, 3, 0, 3, 9, 9, 5, 0, 9, 1, 1, 2, 4, 6, 3, 7, 9, 8, 5, 8, 7, 5, 8, 8, 0, 0, 2, 7, 0, 9, 0, 5, 5, 0, 3, 6, 2, 0, 0, 5, 7, 6, 5, 1, 3, 0, 0, 9, 5, 8, 3, 9, 4, 0, 1, 4, 5, 8, 4, 6, 6, 1, 0, 4, 5

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OFFSET

0,1

REFERENCES

Francois Le Lionnais, Les nombres remarquables, Paris, Hermann, 1983, p. 25.

LINKS

Table of n, a(n) for n=0..104.

EXAMPLE

-0.3847901973793791729759092256322942220633230399509112463798587588...

MATHEMATICA

digits = 105;

x[n_Integer] := x[n] = BesselJZero[1, n];