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A120752 Numbers k such that {rk} <= c, where r = (1/2)^(1/2), c = 1/2 and { } denotes fractional part. 2
2, 3, 6, 9, 10, 12, 13, 16, 17, 19, 20, 23, 26, 27, 30, 33, 34, 36, 37, 40, 43, 44, 47, 50, 51, 53, 54, 57, 58, 60, 61, 64, 67, 68, 70, 71, 74, 75, 77, 78, 81, 84, 85, 88, 91, 92, 94, 95, 98, 99, 101, 102, 105, 108, 109, 111, 112, 115, 116, 118, 119, 122, 125, 126, 129, 132 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Positions of 0 in A083035.

LINKS

Table of n, a(n) for n=1..66.

EXAMPLE

(See A120243.)

MATHEMATICA

r = Sqrt[1/2]; b = 2; c = 0;

f[n_] := Floor[(b*n + c)*r] - b*Floor[n*r] - Floor[c*r];

t = Table[f[n], {n, 1, 200}] (* A083035 *)

Flatten[Position[t, 0]]      (* A120752 *)

Flatten[Position[t, 1]]      (* A120753 *)

CROSSREFS

Cf. A083035, A120753, A190762.

Sequence in context: A032938 A188323 A090892 * A236759 A134695 A323393

Adjacent sequences:  A120749 A120750 A120751 * A120753 A120754 A120755

KEYWORD

nonn

AUTHOR

Clark Kimberling, Jul 01 2006

STATUS

approved

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Last modified May 13 13:53 EDT 2021. Contains 343858 sequences. (Running on oeis4.)