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 A189163 Zero-one sequence based on the sequence n(n+1):  a(A002378(k))=a(k); a(A078358(k))=1-a(k), a(1)=0. 3
 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1 LINKS MATHEMATICA u[n_] := n(n+1);  (*A002378*) a[1] = 0; h = 128; c = (u[#1] &) /@ Range[2h]; d = (Complement[Range[Max[#1]], #1] &)[c]; (*A078358*) Table[a[d[[n]]] = 1 - a[n], {n, 1, h - 1}]; (*A189163*) Table[a[c[[n]]] = a[n], {n, 1, h}]   (*A189163*) Flatten[Position[%, 0]]  (*A189164*) Flatten[Position[%%, 1]] (*A189165*) CROSSREFS Cf. A188967, A189164, A189165. Sequence in context: A189126 A118268 A143220 * A189129 A267269 A187972 Adjacent sequences:  A189160 A189161 A189162 * A189164 A189165 A189166 KEYWORD nonn AUTHOR Clark Kimberling, Apr 17 2011 STATUS approved

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Last modified September 24 07:42 EDT 2021. Contains 347623 sequences. (Running on oeis4.)