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A190670 Positions of 0 in A190669; complement of A190671. 4
2, 3, 6, 7, 10, 11, 14, 17, 18, 21, 22, 25, 26, 28, 29, 32, 33, 36, 37, 40, 41, 43, 44, 47, 48, 51, 52, 55, 58, 59, 62, 63, 66, 67, 70, 73, 74, 77, 78, 81, 82, 84, 85, 88, 89, 92, 93, 96, 97, 99, 100, 103, 104, 107, 108, 111, 114, 115, 118, 119, 122, 123, 126, 129, 130, 133, 134, 137, 138, 140, 141, 144, 145, 148, 149 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See A190669.

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

MATHEMATICA

r = Sqrt[3]; b = 2; c = 0;

f[n_] := Floor[(b*n + c)*r] - b*Floor[n*r] - Floor[c*r];

t = Table[f[n], {n, 1, 200}] (* A190669 *)

Flatten[Position[t, 0]]      (* A190670 *)

Flatten[Position[t, 1]]      (* A190671 *)

CROSSREFS

Cf. A190669, A190671.

Sequence in context: A042964 A230375 A062837 * A226115 A073170 A014689

Adjacent sequences:  A190667 A190668 A190669 * A190671 A190672 A190673

KEYWORD

nonn

AUTHOR

Clark Kimberling, May 16 2011

STATUS

approved

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Last modified September 20 10:24 EDT 2020. Contains 337264 sequences. (Running on oeis4.)