A191188 a(n) = floor(8*n*Pi) - 2*floor(4*n*Pi).

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

Offset

1

Links

Table of n, a(n) for n=1..131.

Mathematica

f[n_] := Floor[8 n*Pi] - 2*Floor[4 n*Pi];
t = Table[f[n], {n, 1, 220}]  (* A191188 *)
Flatten[Position[t, 0]]    (* A191194 *)
Flatten[Position[t, 1]]    (* A191202 *)

Crossrefs

Cf. A191194, A191202.

Sequence in context: A267704 A174888 A162549 * A285592 A276793 A284364

Adjacent sequences: A191185 A191186 A191187 * A191189 A191190 A191191

Keyword

nonn

Author

Clark Kimberling, May 27 2011

Status

approved