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A257176 The decimal expansion of the Integral_x=0..1 _y=0..x sin(x*y). 0
1, 1, 9, 9, 0, 5, 8, 7, 1, 0, 0, 0, 2, 8, 2, 3, 6, 2, 9, 7, 1, 9, 3, 2, 9, 4, 3, 0, 9, 6, 6, 2, 5, 8, 3, 0, 5, 2, 2, 2, 9, 0, 6, 5, 1, 6, 7, 7, 0, 9, 5, 8, 5, 2, 0, 0, 2, 2, 2, 4, 3, 4, 6, 2, 2, 4, 3, 6, 8, 6, 9, 8, 3, 7, 6, 3, 0, 4, 3, 0, 9, 0, 2, 0, 0, 4, 9, 4, 4, 0, 0, 9, 7, 2, 1, 1, 8, 7, 7, 4, 5, 4, 8, 4, 1 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,3

COMMENTS

One of the examples in Mathematica's help file under 'Integrate'.

LINKS

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

FORMULA

1/2*(EulerGamma - CosIntegral(1)).

EXAMPLE

=0.1199058710002823629719329430966258305222906516770958520022243462243686983763...

MATHEMATICA

RealDigits[Integrate[Sin[x y], {x, 0, 1}, {y, 0, x}], 10, 111][[1]]

CROSSREFS

Sequence in context: A302711 A021838 A199960 * A324859 A090655 A229758

Adjacent sequences:  A257173 A257174 A257175 * A257177 A257178 A257179

KEYWORD

nonn,cons,easy

AUTHOR

Robert G. Wilson v, Apr 17 2015

STATUS

approved

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Last modified November 20 12:13 EST 2019. Contains 329335 sequences. (Running on oeis4.)