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A131853 Numbers m such that z(m)=(0,0) with z as defined in A131851. 10
0, 5, 10, 15, 20, 30, 40, 45, 60, 65, 75, 80, 85, 90, 95, 105, 120, 125, 130, 135, 150, 160, 165, 170, 175, 180, 190, 195, 210, 215, 225, 235, 240, 245, 250, 255, 260, 270, 300, 320, 325, 330, 335, 340, 350, 360, 365, 380, 390, 420, 430, 450, 455, 470, 480, 485 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Intersection of A131854 and A131855: A131851(a(n))=0, A131852(a(n))=0;
conjecture: a(n) mod 5 = 0.
LINKS
Seiichi Manyama, Table of n, a(n) for n = 1..10000 (terms 1..1000 from Reinhard Zumkeller)
MATHEMATICA
z[n_] := z[n] = If[n == 0, 0, z[Floor[n/2]] I + Mod[n, 2]];
Flatten[Position[Table[z[n], {n, 0, 500}], 0] - 1] (* Jean-François Alcover, Oct 12 2021 *)
CROSSREFS
Sequence in context: A178892 A269805 A206715 * A115817 A070004 A104356
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Jul 22 2007
STATUS
approved

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Last modified March 19 03:27 EDT 2024. Contains 370952 sequences. (Running on oeis4.)