|
Search: id:A108533
|
|
|
| A108533 |
|
Strong digits in the decimal expansion of Pi. |
|
+0
3
|
|
| 4, 9, 6, 5, 8, 9, 9, 8, 6, 6, 8, 7, 9, 5, 8, 8, 9, 7, 6, 9, 9, 9, 7, 5, 5, 8, 9, 7, 9, 9, 3, 7, 8, 6, 4, 6, 8, 6, 8, 9, 9, 8, 6, 8, 3, 8, 5, 4, 7, 6, 9, 8, 8, 8, 5, 3, 8, 3, 6, 6, 7, 9, 8, 6, 9, 5, 5, 8, 3, 7, 5, 9, 8, 8, 8, 7, 5, 8, 7, 9, 8, 1, 5, 9, 6, 9, 8, 9, 9, 8, 9, 4, 8, 8, 9, 6, 6, 9, 4, 6, 8, 7, 6, 8, 3
(list; graph; listen)
|
|
|
OFFSET
|
1,1
|
|
|
COMMENT
|
In the decimal expansion of Pi, balanced digits are much more rare than weak or strong ones.
|
|
EXAMPLE
|
In the decimal expansion of Pi: 3,1,4,1,5,9,2,6,5,3,5,8,9,7,9,3,2,3,8,4,6,2, the first two strong digits are 4 and 9 because 4>(1+1)/2 and 9>(5+2)/2.
|
|
MATHEMATICA
|
re=RealDigits[N[Pi, 300]][[1]]; b={}; Do[r=re[[n]]; If[r>(re[[n-1]]+re[[n+1]])/2, b=Append[b, r]], {n, 2, 299}]; A108533=b
|
|
CROSSREFS
|
Cf. A108534 (weak digits), A108535 (positions of balanced digits).
Sequence in context: A094090 A008959 A059729 this_sequence A075635 A094243 A155875
Adjacent sequences: A108530 A108531 A108532 this_sequence A108534 A108535 A108536
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
Zak Seidov (zakseidov(AT)yahoo.com), Jun 08 2005
|
|
|
Search completed in 0.002 seconds
|
