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 A283768 Numbers k such that U(k) is odd, where U = A001950 = upper Wythoff sequence. 3
 2, 3, 5, 6, 9, 12, 15, 16, 18, 19, 22, 25, 28, 29, 31, 32, 34, 35, 38, 41, 42, 44, 45, 47, 48, 51, 54, 55, 57, 58, 60, 61, 64, 67, 70, 71, 73, 74, 77, 80, 83, 84, 86, 87, 89, 90, 93, 96, 97, 99, 100, 102, 103, 106, 109, 110, 112, 113, 115, 116, 119, 122, 125 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Complement of A283767. LINKS Clark Kimberling, Table of n, a(n) for n = 1..10000 FORMULA a(n+1) - a(n) is in {1,2,3} for every n. MATHEMATICA r = GoldenRatio^2; z = 250; t = Table[Floor[n*r], {n, 1, z}]; u = Mod[t, 2]; Flatten[Position[u, 0]]  (* A283767 *) Flatten[Position[u, 1]]  (* A283768 *) CROSSREFS Cf. A001950, A001622, A283765, A283767. Sequence in context: A166247 A126785 A295586 * A212864 A026317 A008768 Adjacent sequences:  A283765 A283766 A283767 * A283769 A283770 A283771 KEYWORD nonn,easy AUTHOR Clark Kimberling, Mar 17 2017 STATUS approved

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Last modified August 5 20:40 EDT 2021. Contains 346488 sequences. (Running on oeis4.)