A004576 - OEIS

A004576

Expansion of sqrt(7) in base 9.

2, 5, 7, 2, 6, 6, 8, 6, 4, 4, 6, 3, 0, 8, 6, 5, 3, 5, 1, 7, 8, 0, 0, 0, 6, 4, 5, 4, 1, 1, 6, 8, 5, 6, 6, 0, 6, 4, 3, 2, 5, 4, 4, 4, 7, 1, 8, 8, 5, 7, 3, 4, 1, 2, 7, 4, 2, 1, 7, 2, 6, 2, 1, 3, 1, 1, 8, 7, 1, 3, 7, 4, 4, 6, 5, 6, 6, 6, 3, 1, 8, 5, 0, 8, 7, 4, 7, 8, 4, 1, 6, 8, 8, 0, 5, 1, 6, 3, 2, 0, 0, 3, 7, 0, 1

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

OFFSET

1,1

LINKS

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

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

MATHEMATICA

RealDigits[Sqrt[7], 9, 105][[1]] (* Harvey P. Dale, Dec 07 2011 *)

PROG

(Magma) d:= 7; m:=9; Prune(Reverse(IntegerToSequence(Isqrt(d*m^100), m))); // G. C. Greubel, Mar 25 2018

CROSSREFS

Cf. A010465.