A339450 Numbers k such that there are equal numbers of 0's and 1's and equal numbers of 2's and 3's among the first k digits of the quaternary representation of Pi.

0, 4, 87640, 206648324, 206657530, 206657532, 206657560, 206657576

Offset

1,2

Comments

There are no more terms below 2*10^9.

Links

Table of n, a(n) for n=1..8.

Example

4 is a term because the first four quaternary digits of Pi are 3, 0, 2, 1, one of each digit.
87640 is a term because among the first 87640 digits there are 21880 0's, 21880 1's, 21940 2's and 21940 3's.

Crossrefs

Cf. A004603, A039624, A339449.

Sequence in context: A370683 A066544 A009529 * A273231 A360760 A239021

Adjacent sequences: A339447 A339448 A339449 * A339451 A339452 A339453

Keyword

nonn,base,more

Author

Pontus von Brömssen, Dec 05 2020

Status

approved