A004571 Expansion of sqrt(7) in base 4.

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

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], 4, 100][[1]] (* G. C. Greubel, Mar 25 2018 *)

Prog

(Magma) d:= 7; m:=4; Prune(Reverse(IntegerToSequence(Isqrt(d*m^100), m))); // G. C. Greubel, Mar 25 2018

Crossrefs

Cf. A010465.

Sequence in context: A325955 A337311 A372924 * A204429 A292560 A086137

Adjacent sequences: A004568 A004569 A004570 * A004572 A004573 A004574

Keyword

nonn,base,cons

Author

N. J. A. Sloane

Status

approved