A191152 [4n*e]-2[2n*e], where [ ]=floor.

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

Offset

1

Links

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

Mathematica

f[n_] := Floor[4 n*E] - 2*Floor[2 n*E];
t = Table[f[n], {n, 1, 220}]  (* A191152 *)
Flatten[Position[t, 0]]   (* A191230 *)
Flatten[Position[t, 1]]   (* A191231 *)

Crossrefs

Cf. A191230, A191231.

Sequence in context: A285073 A276394 A215532 * A139312 A323239 A285685

Adjacent sequences: A191149 A191150 A191151 * A191153 A191154 A191155

Keyword

nonn

Author

Clark Kimberling, May 27 2011

Status

approved