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A320301
Differences between positions of 0's in binary expansion of Pi.
3
1, 2, 1, 2, 1, 1, 1, 7, 3, 2, 2, 2, 1, 1, 2, 1, 1, 2, 1, 1, 1, 2, 3, 2, 1, 1, 3, 1, 1, 1, 2, 1, 1, 3, 2, 1, 3, 1, 1, 2, 1, 3, 1, 1, 3, 1, 3, 1, 1, 2, 2, 1, 1, 2, 4, 1, 1, 1, 1, 1, 1, 3, 4, 1, 1, 1, 1, 4, 1, 3, 2, 1, 1, 2, 1, 2, 2, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 4, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 2, 2, 1, 3, 1, 6, 1, 3, 1, 1, 4, 2, 1
OFFSET
1,2
FORMULA
a(n) = A320300(n+1) - A320300(n) (this is about Pi/4, but they are essentially the same).
MATHEMATICA
Differences[Flatten[Position[RealDigits[Pi, 2, 200][[1]], 0]]] (* Alonso del Arte, Oct 11 2018 *)
CROSSREFS
Sequence in context: A003639 A174110 A264969 * A324510 A061916 A351819
KEYWORD
nonn,base
AUTHOR
Jack Zhang, Oct 10 2018
STATUS
approved