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A065828 Binary digits found in decimal expansion of Pi. 13
1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET
1
COMMENTS
If Pi is normal then every possible string of 0's and 1's will appear in this sequence. - Joshua Oliver, Nov 27 2019
LINKS
Jinyuan Wang, Table of n, a(n) for n = 1..10000 (terms 1..7641 from Felix Fröhlich)
EXAMPLE
From Felix Fröhlich, Nov 27 2019: (Start)
The first of the following lines shows the decimal expansion of Pi and the second the expansion with all digits except 0 and 1 omitted, thus giving the terms of the sequence:
3.1415926535897932384626433832795028841971693993751058209749445923078164062
1 1 0 1 1 10 0 0 1 0
(End)
MATHEMATICA
Select[ RealDigits[Pi, 10, 520][[1]], # < 2 &] (* Robert G. Wilson v, May 04 2009 *)
PROG
(PARI) my(d=digits(floor(Pi*10^400))); for(k=1, #d, if(d[k] < 2, print1(d[k], ", "))) \\ Felix Fröhlich, Nov 27 2019
CROSSREFS
Sequence in context: A267621 A014114 A014219 * A341603 A190897 A176329
KEYWORD
nonn,base
AUTHOR
Patrick De Geest, Nov 24 2001
EXTENSIONS
Offset changed to 1 by Jinyuan Wang, Aug 31 2021
STATUS
approved

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Last modified March 29 03:41 EDT 2024. Contains 371264 sequences. (Running on oeis4.)