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A194369 (A194368)/2. 3
1, 2, 6, 7, 8, 12, 13, 14, 35, 36, 37, 41, 42, 43, 47, 48, 49, 70, 71, 72, 76, 77, 78, 82, 83, 84, 204, 205, 206, 210, 211, 212, 216, 217, 218, 239, 240, 241, 245, 246, 247, 251, 252, 253, 274, 275, 276, 280, 281, 282, 286 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

See A194368.

LINKS

Table of n, a(n) for n=1..51.

MATHEMATICA

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

x[n_] := Sum[FractionalPart[k*r], {k, 1, n}]

y[n_] := Sum[FractionalPart[c + k*r], {k, 1, n}]

t1 = Table[If[y[n] < x[n], 1, 0], {n, 1, 100}];

Flatten[Position[t1, 1]]  (* empty *)

t2 = Table[If[y[n] == x[n], 1, 0], {n, 1, 800}];

Flatten[Position[t2, 1]] (* A194368 *)

%/2 (* A194369 *)

t3 = Table[If[y[n] > x[n], 1, 0], {n, 1, 100}];

Flatten[Position[t3, 1]] (* A194370 *)

CROSSREFS

Cf. A194368.

Sequence in context: A327258 A047240 A080333 * A039592 A037454 A189242

Adjacent sequences:  A194366 A194367 A194368 * A194370 A194371 A194372

KEYWORD

nonn

AUTHOR

Clark Kimberling, Aug 23 2011

STATUS

approved

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Last modified July 11 20:03 EDT 2020. Contains 335652 sequences. (Running on oeis4.)