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A360485
a(n) = index of the antidiagonal of the Wythoff array (A035513) that includes n.
0
1, 2, 3, 2, 4, 3, 3, 5, 4, 4, 4, 5, 6, 6, 5, 5, 7, 5, 8, 6, 7, 9, 7, 6, 10, 6, 11, 8, 6, 12, 9, 7, 13, 8, 14, 10, 8, 15, 7, 16, 11, 7, 17, 12, 9, 18, 7, 19, 13, 10, 20, 8, 21, 14, 9, 22, 15, 11, 23, 9, 24, 16, 8, 25, 17, 12, 26, 8, 27, 18, 13, 28, 10, 29, 19
OFFSET
1,2
COMMENTS
Each m appears exactly m times.
MATHEMATICA
W[n_, k_] := Fibonacci[k + 1] Floor[n*GoldenRatio] + (n - 1) Fibonacci[k];
t = Table[W[n - k + 1, k], {n, 300}, {k, n, 1, -1}];
Map[#[[1]] &, Most[Reap[NestWhileList[# + 1 &, 1,
Length[Sow[FirstPosition[t, #]]] > 1 &]][[2]][[1]]]]
(* Peter J. C. Moses, Feb 08 2023 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Feb 09 2023
STATUS
approved