A004540 - OEIS

A004540

Expansion of sqrt(2) in base 3.

1, 1, 0, 2, 0, 1, 1, 2, 2, 1, 2, 2, 2, 0, 0, 1, 2, 1, 2, 2, 1, 2, 2, 2, 0, 0, 1, 1, 2, 1, 0, 0, 0, 1, 0, 2, 0, 0, 0, 2, 2, 0, 1, 2, 1, 1, 1, 2, 0, 2, 0, 2, 2, 0, 1, 2, 0, 2, 1, 1, 0, 2, 2, 1, 0, 1, 0, 0, 0, 2, 2, 1, 1, 2, 1, 0, 1, 1, 2, 2, 1, 0, 2, 0, 2, 1, 2, 1, 0, 0, 2, 0, 2, 0, 0, 2, 1, 2, 0

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,4

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

Jason Kimberley, Index of expansions of sqrt(d) in base b

MATHEMATICA

RealDigits[Sqrt[2], 3, 120][[1]] (* Harvey P. Dale, Sep 20 2016 *)

PROG

(Magma) Prune(Reverse(IntegerToSequence(Isqrt(2*3^200), 3))); // Vincenzo Librandi, Jan 07 2018

CROSSREFS

Cf. A002193, A004539, A004541.