A004585 Expansion of sqrt(10) in base 2.

1, 1, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1

Offset

2,1

Links

G. C. Greubel, Table of n, a(n) for n = 2..10000

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

Mathematica

RealDigits[Sqrt[10], 2, 100][[1]] (* G. C. Greubel, Mar 25 2018 *)

Prog

(Magma) d:= 10; m:=2; Prune(Reverse(IntegerToSequence(Isqrt(d*m^100), m))); // G. C. Greubel, Mar 25 2018
(PARI) my(b = binary(sqrt(10))); concat(b[1], b[2]) \\ Michel Marcus, Mar 26 2018

Crossrefs

Cf. A010467.

Sequence in context: A361022 A341754 A074711 * A319448 A365428 A156277

Adjacent sequences: A004582 A004583 A004584 * A004586 A004587 A004588

Keyword

nonn,base,cons

Author

N. J. A. Sloane

Status

approved