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A019679
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Decimal expansion of Pi/12.
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5
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2, 6, 1, 7, 9, 9, 3, 8, 7, 7, 9, 9, 1, 4, 9, 4, 3, 6, 5, 3, 8, 5, 5, 3, 6, 1, 5, 2, 7, 3, 2, 9, 1, 9, 0, 7, 0, 1, 6, 4, 3, 0, 7, 8, 3, 2, 8, 1, 2, 5, 8, 8, 1, 8, 4, 1, 4, 5, 7, 8, 7, 1, 6, 0, 2, 5, 6, 5, 1, 3, 6, 7, 1, 9, 0, 5, 1, 7, 4, 1, 6, 5, 5, 2, 3, 3, 6, 2, 3, 5, 4, 4, 5, 1, 7, 6, 4, 2, 2
(list; constant; graph; refs; listen; history; internal format)
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OFFSET
| 0,1
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COMMENTS
| Contribution from Eric Desbiaux (moongerms(AT)wanadoo.fr), Dec 08 2008: (Start)
A019679=Cone's volume (radius=1/2, height=1)
= Semi-sphere's volume (radius=1/2)
(End)
Decimal expansion of least x>0 having cos(4x)=(cos 3x)^2. See A197476. - Clark Kimberling, Oct 15 2011
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EXAMPLE
| Pi/12=0.2617993877991494365385536152732919070164307832812588184145787160256513671905174165523362354451764223.. [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 02 2009]
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MATHEMATICA
| RealDigits[N[Pi/12, 6! ]] [From Vladimir Orlovsky (4vladimir(AT)gmail.com), Dec 02 2009]
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CROSSREFS
| Sequence in context: A199501 A021386 A201936 * A104457 A155832 A136764
Adjacent sequences: A019676 A019677 A019678 * A019680 A019681 A019682
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KEYWORD
| nonn,cons
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com).
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