A190547 Positions of 2 in A190544.

4, 9, 11, 16, 21, 23, 28, 33, 38, 40, 45, 50, 52, 57, 62, 64, 69, 74, 79, 81, 86, 91, 93, 98, 103, 108, 110, 115, 120, 122, 127, 132, 134, 137, 139, 144, 149, 151, 156, 161, 163, 168, 173, 178, 180, 185, 190, 192, 197, 202, 207, 209, 214, 219, 221, 226, 231, 233, 238, 243, 248, 250, 255, 260, 262, 267, 272, 277, 279, 284, 289, 291

Offset: 1

Author

Clark Kimberling, May 12 2011

Keywords

• nonn

Comments

See A190544.

Links

• G. C. Greubel, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A190544.

Programs

Mathematica

r = Sqrt[2]; b = 4; c = 0;
f[n_] := Floor[(b*n + c)*r] - b*Floor[n*r] - Floor[c*r];
t = Table[f[n], {n, 1, 200}] (* A190544 *)
Flatten[Position[t, 0]]      (* A190545 *)
Flatten[Position[t, 1]]      (* A190546 *)
Flatten[Position[t, 2]]      (* A190547 *)
Flatten[Position[t, 3]]      (* A190548 *)