

A327179


Positions of 1's in {A327177(n) : n > 0}.


3



1, 2, 6, 7, 8, 11, 12, 13, 14, 18, 19, 23, 24, 25, 30, 31, 35, 36, 37, 40, 41, 42, 43, 47, 48, 49, 52, 53, 54, 59, 60, 64, 65, 66, 69, 70, 71, 72, 76, 77, 78, 81, 82, 83, 84, 88, 89, 93, 94, 95, 100, 101, 105, 106, 107, 110, 111, 112, 113, 117, 118, 122, 123, 124
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OFFSET

1,2


COMMENTS

Although a(n)/n>2, the sequence 2*na(n) appears to be unbounded below and above.
Positive integers k such that A327177(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[2]; z = 200;
t = Table[Floor[(2 n + 1)*r]  Floor[n*r + r]  Floor[n*r], {n, 1, z}] (* {A327177(n) : n > 0} *)
Flatten[Position[t, 0]] (* A327178 *)
Flatten[Position[t, 1]] (* A327179 *)


CROSSREFS

Cf. A327177, A327178 (complement).
Sequence in context: A047553 A139418 A190212 * A031198 A338680 A201819
Adjacent sequences: A327176 A327177 A327178 * A327180 A327181 A327182


KEYWORD

nonn,easy


AUTHOR

Clark Kimberling, Aug 25 2019


EXTENSIONS

Corrected by Jianing Song, Sep 30 2019


STATUS

approved



