A327207 - OEIS

A327207

Positions of 1's in {A327205(n) : n > 0}.

2, 4, 7, 9, 10, 12, 14, 16, 19, 21, 22, 24, 26, 28, 31, 33, 36, 38, 39, 41, 43, 45, 48, 50, 51, 53, 55, 57, 60, 62, 63, 65, 67, 68, 70, 72, 74, 77, 79, 80, 82, 84, 86, 89, 91, 92, 94, 96, 98, 101, 103, 106, 108, 109, 111, 113, 115, 118, 120, 121, 123, 125

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OFFSET

1,1

COMMENTS

Although a(n)/n->2, the sequence 2*n-a(n) appears to be unbounded below and above.

Positive integers k such that A327205(k) = 0. - Jianing Song, Sep 30 2019

LINKS

Clark Kimberling and Jianing Song, Table of n, a(n) for n = 1..10000

MATHEMATICA

r = Sqrt[2]; z = 200;

t = Table[Floor[(2 n + 2)*r] - Floor[n*r + 2 r] - Floor[n*r], {n, 1, z}] (* {A327205(n) : n > 0} *)

Flatten[Position[t, 0]] (* A327206 *)

Flatten[Position[t, 1]] (* A327207 *)

CROSSREFS

Cf. A327205, A327206 (complement).

Sequence in context: A288305 A081249 A327217 * A279934 A047541 A308496

Adjacent sequences: A327204 A327205 A327206 * A327208 A327209 A327210

KEYWORD

nonn,easy

AUTHOR

Clark Kimberling, Aug 26 2019

EXTENSIONS

Corrected by Jianing Song, Sep 30 2019

STATUS

approved