A004604 - OEIS

A004604

Expansion of Pi in base 5.

3, 0, 3, 2, 3, 2, 2, 1, 4, 3, 0, 3, 3, 4, 3, 2, 4, 1, 1, 2, 4, 1, 2, 2, 4, 0, 4, 1, 4, 0, 2, 3, 1, 4, 2, 1, 1, 1, 4, 3, 0, 2, 0, 3, 1, 0, 0, 2, 2, 0, 0, 3, 4, 4, 4, 1, 3, 2, 2, 1, 1, 0, 1, 0, 4, 0, 3, 3, 2, 1, 3, 4, 4, 0, 0, 4, 3, 2, 4, 4, 4, 0, 1, 4, 4, 1, 0, 4, 2, 3, 3, 4, 1, 3, 3, 0, 1, 1, 3, 2

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OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

Wadim Zudilin, A BBP-style computation for π in base 5, arXiv:2409.10097 [math.NT], 2024.

EXAMPLE

3.03232214303343241124122404140231421114...

MATHEMATICA

RealDigits[Pi, 5, 100][[1]]

Table[ResourceFunction["NthDigit"][Pi, n, 5], {n, 1, 100}] (* Joan Ludevid, Aug 17 2022; easy to compute a(10000000)=0 with this function; requires Mathematica 12.0+ *)

CROSSREFS

Pi in base b: A004601 (b=2), A004602 (b=3), A004603 (b=4), this sequence (b=5), A004605 (b=6), A004606 (b=7), A006941 (b=8), A004608 (b=9), A000796 (b=10), A068436 (b=11), A068437 (b=12), A068438 (b=13), A068439 (b=14), A068440 (b=15), A062964 (b=16), A060707 (b=60).

Cf. A007514.

Sequence in context: A219107 A338498 A221166 * A246924 A274715 A324180

Adjacent sequences: A004601 A004602 A004603 * A004605 A004606 A004607

KEYWORD

nonn,base,cons,easy

AUTHOR

N. J. A. Sloane

STATUS

approved