A354482 Positions of 0's in binary expansion of Pi.

1, 2, 4, 5, 7, 8, 9, 10, 17, 20, 22, 24, 26, 27, 28, 30, 31, 32, 34, 35, 36, 37, 39, 42, 44, 45, 46, 49, 50, 51, 52, 54, 55, 56, 59, 61, 62, 65, 66, 67, 69, 70, 73, 74, 75, 78, 79, 82, 83, 84, 86, 88, 89, 90, 92, 96, 97, 98, 99, 100, 101, 102, 105, 109, 110

Offset

1,2

Comments

Complement of A256108.

Links

Table of n, a(n) for n=1..65.

Formula

a(n) = A320300(n) - 2.

Example

Pi in binary is 11.0010010000111111011010101000100010000101..., so this sequence starts with 1, 2, 4, 5, 7, 8, 9, 10, 17, 20, 22, ...

Mathematica

Flatten[Position[RealDigits[Pi, 2, 200][[1]], 0] - 2] (* after the program for A320300 from Alonso del Arte *)

Prog

(PARI) default(realprecision, 100); v = select(x->(x==0), binary(Pi)[2], 1) \\ after the program for A320300 from Michel Marcus

Crossrefs

Cf. A004601, A256108, A320300, A320301.

Sequence in context: A095042 A010423 A035235 * A253723 A014132 A184008

Adjacent sequences: A354479 A354480 A354481 * A354483 A354484 A354485

Keyword

nonn,base

Author

Jianing Song, May 27 2022

Status

approved