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A189169 Zero-one sequence based on the sequence n(n+2):  a(A005563(k))=a(k); a(A183299(k))=1-a(k), a(1)=0, a(2)=1. 4
1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 0, 0, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1

LINKS

Table of n, a(n) for n=1..97.

MATHEMATICA

u[n_] := n(n+2);  (*A005563*)

a[1] = 0; a[2]=1; h = 128;

c = (u[#1] &) /@ Range[2h];

d = (Complement[Range[Max[#1]], #1] &)[c]; (*A183299*)

Table[a[d[[n]]] = 1 - a[n], {n, 1, h - 1}]; (*A189169*)

Table[a[c[[n]]] = a[n], {n, 1, h}]   (*A189169*)

Flatten[Position[%, 0]]  (*A189170*)

Flatten[Position[%%, 1]] (*A189171*)

CROSSREFS

Cf. A188967, A189170, A189171, A189166.

Sequence in context: A087003 A266840 A104606 * A267676 A014389 A014349

Adjacent sequences:  A189166 A189167 A189168 * A189170 A189171 A189172

KEYWORD

nonn

AUTHOR

Clark Kimberling, Apr 17 2011

STATUS

approved

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Last modified November 18 07:22 EST 2019. Contains 329252 sequences. (Running on oeis4.)