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Search: id:A114149
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| A114149 |
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Self-describing sequence: 1 even integer between two odd, then 2 even integers between two odd, then 3 even integers, then 4, then 6... The length of each run of even integers is given by the sequence itself (the smallest odd available integer is used when needed). |
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+0
2
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| 1, 2, 3, 4, 6, 7, 8, 10, 12, 13, 14, 16, 18, 20, 21, 22, 24, 26, 28, 30, 32, 33, 34, 36, 38, 40, 42, 44, 46, 47, 48, 50, 52, 54, 56, 58, 60, 62, 63, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 83, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 106, 107, 108, 110, 112, 114, 116, 118
(list; graph; listen)
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OFFSET
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1,2
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EXAMPLE
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Runs of even integers are between brackets:
1,(2),3,(4,6),7,(8,10,12),13,(14,16,18,20),21,(22,24,26,28,30,32),33...
.^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
1 even 2 even 3 even 4 even 6 even... etc. = seq. itself
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CROSSREFS
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Sequence in context: A027564 A066049 A131629 this_sequence A062974 A065609 A080389
Adjacent sequences: A114146 A114147 A114148 this_sequence A114150 A114151 A114152
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KEYWORD
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base,easy,nonn
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AUTHOR
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Eric Angelini & Alexandre Wajnberg (eric.angelini(AT)kntv.be), Feb 03 2006
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