A372837 - OEIS

A372837

Decimal expansion of Sum_{k>=1} sin(Pi/k^2).

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

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OFFSET

1,2

LINKS

Table of n, a(n) for n=1..86.

EXAMPLE

1.9389961011134155580057094825455570371027129185481840...

MATHEMATICA

s = Sum[Sin[Pi/k^2], {k, 1, Infinity}]

d = N[s, 100]

First[RealDigits[d]]

CROSSREFS