A320301 Differences between positions of 0's in binary expansion of Pi.

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

Links

Table of n, a(n) for n=1..112.

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

Cf. A320300, A320302.

Sequence in context: A003639 A174110 A264969 * A324510 A061916 A351819

Adjacent sequences: A320298 A320299 A320300 * A320302 A320303 A320304

Keyword

nonn,base

Author

Jack Zhang, Oct 10 2018

Status

approved