

A327255


Positions of 1's in {A327253(n) : n > 0}.


4



2, 4, 6, 8, 11, 13, 15, 17, 19, 20, 22, 24, 26, 28, 31, 33, 35, 37, 39, 40, 42, 44, 46, 48, 51, 53, 55, 57, 59, 60, 62, 64, 66, 68, 71, 73, 75, 77, 79, 80, 82, 84, 86, 88, 91, 93, 95, 97, 100, 102, 104, 106, 108, 109, 111, 113, 115, 117, 120, 122, 124
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OFFSET

1,1


COMMENTS

Although a(n)/n>2, the sequence a(n)2n appears to be unbounded above.
Positive integers k such that A327253(k) = 1.  Jianing Song, Sep 30 2019


LINKS

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


MATHEMATICA

r = Sqrt[6]; z = 300;
t = Table[Floor[2 n r]  2 Floor[n*r], {n, 1, z}] (* {A327253(n) : n > 0} *)
Flatten[Position[t, 0]] (* A327254 *)
Flatten[Position[t, 1]] (* A327255 *)


CROSSREFS

Cf. A327253, A327254 (complement).
Sequence in context: A205556 A051244 A054683 * A287777 A249099 A329838
Adjacent sequences: A327252 A327253 A327254 * A327256 A327257 A327258


KEYWORD

nonn,easy


AUTHOR

Clark Kimberling, Sep 03 2019


EXTENSIONS

Corrected by Jianing Song, Sep 30 2019


STATUS

approved



