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A281408
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Lexicographically first sequence of distinct terms with the property that each triple of consecutive terms contains a term that divides the difference of the other two terms.
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2
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1, 2, 3, 5, 8, 13, 21, 4, 9, 17, 26, 43, 69, 112, 181, 23, 20, 63, 83, 10, 33, 53, 86, 11, 15, 37, 7, 6, 19, 25, 44, 94, 50, 22, 14, 36, 64, 28, 12, 16, 40, 24, 88, 32, 56, 120, 176, 296, 30, 38, 68, 106, 174, 34, 35, 103, 138, 241, 379, 46, 57, 149, 92, 333
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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LINKS
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EXAMPLE
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The first terms, alongside the indexes of the terms that divides the difference of the other two terms within the n-th triple of consecutive terms, are:
n a(n) Indexes
-- ---- -------
1 1 1, 2
2 2 1, 2
3 3 1, 2
4 5 1, 2
5 8 1, 2
6 13 3
7 21 2
8 4 1
9 9 1, 2
10 17 1, 2
11 26 1, 2
12 43 1, 2
13 69 1, 2
14 112 3
15 181 2
16 23 2
17 20 1, 2
18 63 3
19 83 2
20 10 1
21 33 1, 2
22 53 3
23 86 3
24 11 1
25 15 1
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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