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A086203 Decimal expansion of arctan(1/2)/Pi. 0
1, 4, 7, 5, 8, 3, 6, 1, 7, 6, 5, 0, 4, 3, 3, 2, 7, 4, 1, 7, 5, 4, 0, 1, 0, 7, 6, 2, 2, 4, 7, 4, 0, 5, 2, 5, 9, 5, 1, 1, 3, 4, 5, 2, 3, 8, 8, 6, 9, 1, 7, 8, 9, 4, 5, 9, 9, 9, 2, 2, 3, 1, 2, 8, 6, 2, 7, 1, 1, 4, 7, 6, 7, 8, 6, 0, 2, 6, 3, 3, 6, 7, 3, 1, 7, 1, 4, 2, 9, 8, 9, 4, 7, 7, 8, 9, 8, 0, 4, 0, 0, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..101.

Eric Weisstein's World of Mathematics, Plouffe's Constants

EXAMPLE

0.14758...

PROG

(PARI)  atan(1/2)/Pi \\ Michel Marcus, Jul 29 2015

CROSSREFS

Sequence in context: A085674 A200391 A011092 * A248867 A199441 A196566

Adjacent sequences:  A086200 A086201 A086202 * A086204 A086205 A086206

KEYWORD

nonn,cons

AUTHOR

Eric W. Weisstein, Jul 12 2003

STATUS

approved

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Last modified September 25 21:12 EDT 2018. Contains 315425 sequences. (Running on oeis4.)