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Search: id:A137293
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| A137293 |
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a(1) = 1. After the initial 1, follow with runs of integers; the nth run of 2*a(n) terms is (1,2,3,4,....,2a(n)). |
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+0
1
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| 1, 1, 2, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 1, 2, 3, 4, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 1, 2, 3, 4, 1, 2, 3, 4, 5, 6, 1, 2, 3, 4, 5, 6
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OFFSET
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1,3
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EXAMPLE
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Runs of integers bracketed by parentheses. (Note that nth run {after the initial 1} has exactly 2a(n) terms.)
1, (1, 2), (1, 2), (1, 2, 3, 4), (1, 2), (1, 2, 3, 4), (1, 2), (1, 2, 3, 4), (1, 2, 3, 4, 5, 6), (1, 2, 3, 4, 5, 6, 7, 8), (1, 2), (1, 2, 3, 4), (1, 2), (1, 2, 3, 4), (1, 2, 3, 4, 5, 6), (1, 2, 3, 4, 5, 6, 7, 8), (1, 2), (1, 2, 3, 4), (1, 2), (1, 2, 3, 4), (1, 2, 3, 4, 5, 6), (1, 2, 3, 4, 5, 6, 7, 8), (1, 2), (1, 2, 3, 4), (1, 2, 3, 4, 5, 6), (1, 2, 3, 4, 5, 6, 7, 8), (1, 2, 3, 4, 5, 6, 7, 8, 9, 10), (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12), ...
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CROSSREFS
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Adjacent sequences: A137290 A137291 A137292 this_sequence A137294 A137295 A137296
Sequence in context: A060145 A035391 A049711 this_sequence A074641 A069003 A087855
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KEYWORD
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easy,nonn
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AUTHOR
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Leroy Quet (qq-quet(AT)mindspring.com), Mar 15 2008
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