|
|
A372610
|
|
Decimal expansion of Sum_{k >= 1} floor((Pi/2)*k)/2^k.
|
|
3
|
|
|
2, 6, 6, 9, 2, 9, 1, 3, 3, 8, 5, 8, 2, 6, 7, 7, 1, 6, 5, 3, 5, 4, 3, 3, 0, 7, 0, 8, 6, 6, 1, 4, 1, 7, 3, 2, 2, 8, 3, 4, 6, 4, 5, 6, 6, 9, 2, 9, 1, 3, 3, 8, 5, 8, 2, 6, 7, 7, 1, 6, 5, 3, 5, 4, 3, 3, 0, 6, 9, 9, 3, 1, 5, 3, 8, 6, 0, 7, 7, 0, 0, 8, 0, 7, 2, 0, 9, 8, 9, 4
(list;
constant;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
FORMULA
|
Approximately 339/127, correct to 67 digits: see Example 4.1 (a) in Borwein and Borwein (1992), p. 633.
|
|
EXAMPLE
|
2.669291338582677165354330708661417322834645669291338582677...
|
|
MATHEMATICA
|
First[RealDigits[Sum[Floor[Pi*k/2]/2^k, {k, 400}], 10, 100]]
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|